Author Archives: Robins

spyder an error ocurred while starting the kernel (How to Fix)

I started the kernel with An error ocurred while running the Keras program using Spyder every time. Finally, I checked several methods before I solved it. I’ll share it with you.
The first method:
The problem is solved by typing Spyder — Reset in the terminal and resetting the Spyder configuration.
I tried this method and found that the problem was not solved. You can try it. Maybe yours can work out.
The second way

conda update spyder ipykernel tornado pyzmq

After running a bunch of libraries, I found that my problem was still unresolved.

The above two methods are more commonly used on the Internet. But in my case the problem has not been solved. I don’t know what’s going on. Finally, I thought to myself, why didn’t this happen before?Now it does. Comparison one is that the data set has changed. I used a 0.2 scale of data set in the program to perform the validation operation. Now 20% of the data set is not an integer. And Then I changed it. The kernel crash problem found above was resolved.
Maybe I’m doing this as an example, but I’ll put it up here for you to look at.

Raspberry Pi USB drive-free camera error libv4l2: error setting pixformat: Device or resource busy, etc.

The article directories
Learn to record the causes of errors and their solutions

Learning record
I have searched many times on the Internet before, but I haven’t found a solution yet. Suddenly, I came up with a solution.
error

libv4l2: error setting pixformat: Device or resource busy
VIDEOIO ERROR: libv4l unable to ioctl S_FMT
libv4l2: error setting pixformat: Device or resource busy
libv4l1: error setting pixformat: Device or resource busy
VIDEOIO ERROR: libv4l unable to ioctl VIDIOCSPICT

What you see: Sometimes the camera doesn’t work, so you have to plug it in.
Reasons and solutions
I didn’t know why there was such an error. Recently, I read some relevant books and found that I was missing a key line of code.

int main( int argc, const char** argv )
{

	VideoCapture cap; 
	cap.open(0);
    if(!cap.isOpened())
        return -1;
        
    while(1)
    {
        Mat frame;
        cap >> frame; 
        imshow("Video", frame);
        if(waitKey(30) >= 0) 
        	break;
    }
    cap.release();
	return 0;
}

Where, the key sentence cap.release(); is used to release the cap of the camera.
will cause the above error if it is not released.

Vue Error-Error message: Syntax Error: Assigning to rvalue.

At first, I thought Syntax Error was node_modules and there was another problem, so I violently deleted the node_modules folder, and then back up in the backup file. It turned out to be useless. This is a grammatical error.
Then I continued to search for information, so I found the problem on CSDN blogger: Rabbit Gone away [click to open link].
In the HTML tag, one v-model bound property value is not declared .
So the problem was solved instantly, and I read back the wrong information afterwards, which actually gave me a very clear wrong position. As shown in figure:

It seems that we still need more observation, careful deBug ah…

ERROR 1044 (42000): Access denied for user ”@’localhost’ to database ‘mysql’

When I started MySQL5.7, which links to the local server, I found that I did not have access rights
ERROR 1044 (42000): Access denied for user ”@’localhost’ to database ‘mysql’

2018-01-30 11:22:06,667 [main] INFO  [com.zheng.upms.rpc.ZhengUpmsRpcServiceApplication] - >>>>> zheng-upms-rpc-service running <<<<<
2018-01-30 11:22:06,999 [main] INFO  [com.alibaba.dubbo.common.logger.LoggerFactory] - using logger: com.alibaba.dubbo.common.logger.log4j.Log4jLoggerAdapter
2018-01-30 11:22:12,815 [main] ERROR [com.alibaba.druid.pool.DruidDataSource] - init datasource error, url: jdbc:mysql://192.168.1.6:3316/zheng?useUnicode=true&characterEncoding=utf-8&autoReconnect=true
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
	at com.mysql.jdbc.Util.getInstance(Util.java:360)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:935)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:924)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:870)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2144)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2069)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:148)
	at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:211)
	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:142)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1377)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1431)
	at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:632)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1758)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1695)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedMap(BeanDefinitionValueResolver.java:407)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:165)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at com.zheng.upms.rpc.ZhengUpmsRpcServiceApplication.main(ZhengUpmsRpcServiceApplication.java:17)
Caused by: java.sql.SQLException: Access denied for user 'root'@'BCWQMPEKEKG1O0P' (using password: YES)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:996)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)
	at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2234)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2085)
	... 80 more
2018-01-30 11:22:12,829 [main] ERROR [com.alibaba.druid.pool.DruidDataSource] - dataSource init error
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
	at com.mysql.jdbc.Util.getInstance(Util.java:360)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:935)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:924)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:870)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2144)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2069)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:148)
	at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:211)
	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:142)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1377)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1431)
	at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:632)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1758)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1695)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedMap(BeanDefinitionValueResolver.java:407)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:165)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at com.zheng.upms.rpc.ZhengUpmsRpcServiceApplication.main(ZhengUpmsRpcServiceApplication.java:17)
Caused by: java.sql.SQLException: Access denied for user 'root'@'BCWQMPEKEKG1O0P' (using password: YES)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:996)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)
	at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2234)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2085)
	... 80 more
2018-01-30 11:22:12,831 [main] INFO  [com.alibaba.druid.pool.DruidDataSource] - {dataSource-1} inited
2018-01-30 11:22:12,832 [main] WARN  [org.springframework.context.support.ClassPathXmlApplicationContext] - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'upmsSystemService': Unsatisfied dependency expressed through field 'upmsSystemMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'upmsSystemMapper' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-dao\target\classes\com\zheng\upms\dao\mapper\UpmsSystemMapper.class]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'masterDataSource' while setting bean property 'targetDataSources' with key [TypedStringValue: value [masterDataSource], target type [class java.lang.String]]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterDataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Invocation of init method failed; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
Exception in thread "main" org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'upmsSystemService': Unsatisfied dependency expressed through field 'upmsSystemMapper'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'upmsSystemMapper' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-dao\target\classes\com\zheng\upms\dao\mapper\UpmsSystemMapper.class]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'masterDataSource' while setting bean property 'targetDataSources' with key [TypedStringValue: value [masterDataSource], target type [class java.lang.String]]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterDataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Invocation of init method failed; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588)
	at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
	at com.zheng.upms.rpc.ZhengUpmsRpcServiceApplication.main(ZhengUpmsRpcServiceApplication.java:17)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'upmsSystemMapper' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-dao\target\classes\com\zheng\upms\dao\mapper\UpmsSystemMapper.class]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'masterDataSource' while setting bean property 'targetDataSources' with key [TypedStringValue: value [masterDataSource], target type [class java.lang.String]]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterDataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Invocation of init method failed; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
	at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066)
	at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585)
	... 15 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'masterDataSource' while setting bean property 'targetDataSources' with key [TypedStringValue: value [masterDataSource], target type [class java.lang.String]]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterDataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Invocation of init method failed; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	... 28 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Cannot resolve reference to bean 'masterDataSource' while setting bean property 'targetDataSources' with key [TypedStringValue: value [masterDataSource], target type [class java.lang.String]]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterDataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Invocation of init method failed; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedMap(BeanDefinitionValueResolver.java:407)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:165)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	... 38 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'masterDataSource' defined in file [D:\file_manager_workspace\zheng\zheng\zheng-upms\zheng-upms-rpc-service\target\classes\META-INF\spring\applicationContext-jdbc.xml]: Invocation of init method failed; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
	... 50 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
	at com.mysql.jdbc.Util.getInstance(Util.java:360)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:935)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:924)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:870)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2144)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2069)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)
	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:148)
	at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:211)
	at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:142)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1377)
	at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1431)
	at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:632)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeCustomInitMethod(AbstractAutowireCapableBeanFactory.java:1758)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1695)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
	... 57 more
Caused by: java.sql.SQLException: Access denied for user 'root'@'BCWQMPEKEKG1O0P' (using password: YES)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:996)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)
	at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)
	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2234)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2085)
	... 80 more
2018-01-30 11:23:09,857 [DubboShutdownHook] INFO  [com.alibaba.dubbo.config.AbstractConfig] -  [DUBBO] Run shutdown hook now., dubbo version: 2.5.6, current host: 127.0.0.1
2018-01-30 11:23:09,858 [DubboShutdownHook] INFO  [com.alibaba.dubbo.registry.support.AbstractRegistryFactory] -  [DUBBO] Close all registries [], dubbo version: 2.5.6, current host: 127.0.0.1

solution: go to the mysql console of the server and execute the following statement

UPDATE USER SET HOST = ‘%’ WHERE USER = ‘root’;
“FLUSH PRIVILEGES” is accessible to any host. Refresh permissions

GRANT ALL PRIVILEGES ON *.* TO ‘root’@’localhost’ IDENTIFIED BY ‘lifeng’;
UPDATE USER SET HOST = ‘%’ WHERE USER = ‘root’;
DELETE USER WHERE HOST = ‘localhost’ AND USER=root
SELECT HOST, USER FROM USER;

DELETE FROM mysql.user WHERE USER=’root’ AND HOST=’localhost’; Remove unwanted user root

FLUSH PRIVILEGES;

Error resolution-“Error in configuration process, project files may be invalid” appears when Cmake compiles openCV


error occurs when cmake compiles opencv

error paste as follows:
` `
A wrong
Can’t detect runtime and/or arch
FP16: Compiler support is available
CMake Warning at cmake/OpenCVUtils.cmake:1020 (message):
Download: Local copy of opencv_ffmpeg.dll has invalid MD5 hash:
6048172a1d2ebdc53194abc93c0e7c4a (expected:
f081abd9d6ca7e425d340ce586f9c090)
Call Stack (most recent call first):
3rdparty/ffmpeg/ffmpeg.cmake:10 (ocv_download)
cmake/OpenCVFindLibsVideo.cmake:219 (include)
CMakeLists.txt:557 (include)
Downloading opencv_ffmpeg. DLL…
CMake Error at cmake/OpenCVUtils.cmake:1043 (file):
file DOWNLOAD HASH mismatch
for file: [E:/Files/openCV/opencv/sources/3rdparty/ffmpeg/downloads/f081abd9d6ca7e425d340ce586f9c090/opencv_ffmpeg.dll]
expected hash: [f081abd9d6ca7e425d340ce586f9c090]
actual hash: D97fa2ee09c8ee442db07b6367ca [3108]
the status: [28; “Timeout was reached”]
Call Stack (most recent call first):
3rdparty/ffmpeg/ffmpeg.cmake:10 (ocv_download)
cmake/OpenCVFindLibsVideo.cmake:219 (include)
CMakeLists.txt:557 (include)
CMake Error at cmake/OpenCVUtils.cmake:1047 (message):
Failed to download opencv_ffmpeg.dll. Status=28; “The Timeout was reached”
the Call Stack (the most recent Call first) :
3 rdparty/ffmpeg/ffmpeg. Cmake: 10 (ocv_download)
cmake/OpenCVFindLibsVideo cmake: 219 (include)
CMakeLists. TXT: 557 (include)
Configuring incomplete, errors occurred!
See also “E:/Files/openCV/openCV/newbuild CMakeFiles/CMakeOutput log”.
See also “E:/Files/openCV/openCV/newbuild/CMakeFiles/CMakeError log”.
This is because FFMpeg did not download successfully
Open path E: \ Files \ openCV, openCV, sources, 3 rdparty \ ffmpeg \ ffmpeg cmake in the download address (openCV download address before half save position may be different)
here it is important to note that the download address to converted (yellow parts are replaced with another yellow box) box last green added to the end of the
as a convenience to see clearly, my download address as follows, slightly more than once to see:
https://raw.githubusercontent.com/opencv/opencv_3rdparty/2a19d0006415955c79431116e4634f04d5eb5a74/ffmpeg/opencv_ffmpeg.dll
https://raw.githubusercontent.com/opencv/opencv_3rdparty/2a19d0006415955c79431116e4634f04d5eb5a74/ffmpeg/opencv_ffmpeg_64.dll
https://raw.githubusercontent.com/opencv/opencv_3rdparty/2a19d0006415955c79431116e4634f04d5eb5a74/ffmpeg/opencv_ffmpeg_64.dll
In addition also need to know what the hash value of the three files downloaded: query tool https://download.csdn.net/download/xubuhui/12032166
tool to use: click the exe after installation to find need query file right click -> properties can see the corresponding MD5

opencv_ffmpeg. DLL MD5: F081ABD9D6CA7E425D340CE586F9C090
MD5 opencv_ffmpeg_64. DLL: A423363A6EB76D362CA6C406C96C8DB6
A44febe61bd47e404aacd746ff ffmpeg_version. Cmake MD5:216942
Place the downloaded file into the appropriate folder

E:\Files\openCV\opencv\sources\3rdparty\ffmpeg\downloads\F081ABD9D6CA7E425D340CE586F9C090

1

E:\Files\openCV\opencv\sources\3rdparty\ffmpeg\downloads\A423363A6EB76D362CA6C406C96C8DB6

1

E:\Files\openCV\opencv\sources\3rdparty\ffmpeg\downloads\216942A44FEBE61BD47E404AACD746FF

1
Configure
. Configure
. Configure
.

Can't detect runtime and/or arch
FP16: Compiler support is available
Downloading ffmpeg_version.cmake...
Downloading ffmpeg_version.cmake... Done
ICV: Downloading ippicv_windows_20151201.zip...
CMake Error at 3rdparty/ippicv/downloader.cmake:73 (file):
file DOWNLOAD HASH mismatch

for file: [E:/Files/openCV/opencv/sources/3rdparty/ippicv/downloads/windows-04e81ce5d0e329c3fbc606ae32cad44d/ippicv_windows_20151201.zip]
expected hash: [04 e81ce5d0e329c3fbc606ae32cad44d]
actual hash: e31e3fa2b51979a82c654e0b05c376 [72]
the status: [28; "Timeout was reached"]
Call Stack (most recent call first):
3rdparty/ippicv/downloader.cmake:110 (_icv_downloader)
cmake/OpenCVFindIPP.cmake:243 (include)
cmake/OpenCVFindLibsPerf.cmake:37 (include)
CMakeLists.txt:558 (include)
CMake Error at 3rdparty/ippicv/downloader.cmake:77 (message):
ICV: Failed to download ICV package: ippicv_windows_20151201.zip.
Status=28; "The Timeout was reached"
the Call Stack (the most recent Call first) :
3 rdparty/ippicv/downloader. Cmake: 110 (_icv_downloader)
cmake/OpenCVFindIPP cmake: 243 (include)
cmake/OpenCVFindLibsPerf.cmake:37 (include)
CMakeLists.txt:558 (include)
Configuring incomplete, errors occurred!
See also "E:/Files/openCV/openCV/newbuild CMakeFiles/CMakeOutput log".
See also "E:/Files/openCV/openCV/newbuild/CMakeFiles/CMakeError log".

1234567891011121314151617181920212223242526272829
Ippicv did not download successfully
E:\Files\openCV\ openCV\ sources\3rdparty\ippicv\downloader. Cmake

https://raw.githubusercontent.com/opencv/opencv_3rdparty/81a676001ca8075ada498583e4166079e5744668/ippicv/ippicv_windows_20151201.zip
https://raw.githubusercontent.com/opencv/opencv_3rdparty/81a676001ca8075ada498583e4166079e5744668/ippicv/ippicv_macosx_20151201.tgz
https://raw.githubusercontent.com/opencv/opencv_3rdparty/81a676001ca8075ada498583e4166079e5744668/ippicv/ippicv_linux_20151201.tgz
use MD5 hash query tools inquires at this time
the file save my computer is Windows have to I will not show other
Into the path of the E: \ Files \ openCV, openCV, sources, 3 rdparty \ ippicv \ downloads \ Windows - 04 e81ce5d0e329c3fbc606ae32cad44d
cmake returns again after the file into the corresponding directory
Error 2
There is another error

CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
CUDA_nppi_LIBRARY (ADVANCED)
linked by target "opencv_cudev" in directory E:/Files/openCV/opencv/sources/modules/cudev
linked by target "opencv_cudev" in directory E:/Files/openCV/opencv/sources/modules/cudev
linked by target "opencv_test_cudev" in directory E:/Files/openCV/opencv/sources/modules/cudev/test
linked by target "opencv_core" in directory E:/Files/openCV/opencv/sources/modules/core
linked by target "opencv_core" in directory E:/Files/openCV/opencv/sources/modules/core
linked by target "opencv_test_core" in directory E:/Files/openCV/opencv/sources/modules/core
linked by target "opencv_perf_core" in directory E:/Files/openCV/opencv/sources/modules/core
linked by target "opencv_test_cudaarithm" in directory E:/Files/openCV/opencv/sources/modules/cudaarithm
linked by target "opencv_cudaarithm" in directory E:/Files/openCV/opencv/sources/modules/cudaarithm
linked by target "opencv_cudaarithm" in directory E:/Files/openCV/opencv/sources/modules/cudaarithm
linked by target "opencv_perf_cudaarithm" in directory E:/Files/openCV/opencv/sources/modules/cudaarithm
linked by target "opencv_flann" in directory E:/Files/openCV/opencv/sources/modules/flann
linked by target "opencv_flann" in directory E:/Files/openCV/opencv/sources/modules/flann
linked by target "opencv_test_flann" in directory E:/Files/openCV/opencv/sources/modules/flann
linked by target "opencv_imgproc" in directory E:/Files/openCV/opencv/sources/modules/imgproc
linked by target "opencv_imgproc" in directory E:/Files/openCV/opencv/sources/modules/imgproc
linked by target "opencv_test_imgproc" in directory E:/Files/openCV/opencv/sources/modules/imgproc
linked by target "opencv_perf_imgproc" in directory E:/Files/openCV/opencv/sources/modules/imgproc
linked by target "opencv_test_ml" in directory E:/Files/openCV/opencv/sources/modules/ml
linked by target "opencv_ml" in directory E:/Files/openCV/opencv/sources/modules/ml
linked by target "opencv_ml" in directory E:/Files/openCV/opencv/sources/modules/ml
linked by target "opencv_test_video" in directory E:/Files/openCV/opencv/sources/modules/video
linked by target "opencv_video" in directory E:/Files/openCV/opencv/sources/modules/video
linked by target "opencv_video" in directory E:/Files/openCV/opencv/sources/modules/video
linked by target "opencv_perf_video" in directory E:/Files/openCV/opencv/sources/modules/video
linked by target "opencv_cudabgsegm" in directory E:/Files/openCV/opencv/sources/modules/cudabgsegm
linked by target "opencv_cudabgsegm" in directory E:/Files/openCV/opencv/sources/modules/cudabgsegm
linked by target "opencv_test_cudabgsegm" in directory E:/Files/openCV/opencv/sources/modules/cudabgsegm
linked by target "opencv_perf_cudabgsegm" in directory E:/Files/openCV/opencv/sources/modules/cudabgsegm
linked by target "opencv_cudafilters" in directory E:/Files/openCV/opencv/sources/modules/cudafilters
linked by target "opencv_cudafilters" in directory E:/Files/openCV/opencv/sources/modules/cudafilters
linked by target "opencv_test_cudafilters" in directory E:/Files/openCV/opencv/sources/modules/cudafilters
linked by target "opencv_perf_cudafilters" in directory E:/Files/openCV/opencv/sources/modules/cudafilters
linked by target "opencv_cudaimgproc" in directory E:/Files/openCV/opencv/sources/modules/cudaimgproc
linked by target "opencv_cudaimgproc" in directory E:/Files/openCV/opencv/sources/modules/cudaimgproc
linked by target "opencv_test_cudaimgproc" in directory E:/Files/openCV/opencv/sources/modules/cudaimgproc
linked by target "opencv_perf_cudaimgproc" in directory E:/Files/openCV/opencv/sources/modules/cudaimgproc
linked by target "opencv_perf_cudawarping" in directory E:/Files/openCV/opencv/sources/modules/cudawarping
linked by target "opencv_cudawarping" in directory E:/Files/openCV/opencv/sources/modules/cudawarping
linked by target "opencv_cudawarping" in directory E:/Files/openCV/opencv/sources/modules/cudawarping
linked by target "opencv_test_cudawarping" in directory E:/Files/openCV/opencv/sources/modules/cudawarping
linked by target "opencv_imgcodecs" in directory E:/Files/openCV/opencv/sources/modules/imgcodecs
linked by target "opencv_imgcodecs" in directory E:/Files/openCV/opencv/sources/modules/imgcodecs
linked by target "opencv_test_imgcodecs" in directory E:/Files/openCV/opencv/sources/modules/imgcodecs
linked by target "opencv_perf_imgcodecs" in directory E:/Files/openCV/opencv/sources/modules/imgcodecs
linked by target "opencv_perf_photo" in directory E:/Files/openCV/opencv/sources/modules/photo
linked by target "opencv_photo" in directory E:/Files/openCV/opencv/sources/modules/photo
linked by target "opencv_photo" in directory E:/Files/openCV/opencv/sources/modules/photo
linked by target "opencv_test_photo" in directory E:/Files/openCV/opencv/sources/modules/photo
linked by target "opencv_test_shape" in directory E:/Files/openCV/opencv/sources/modules/shape
linked by target "opencv_shape" in directory E:/Files/openCV/opencv/sources/modules/shape
linked by target "opencv_shape" in directory E:/Files/openCV/opencv/sources/modules/shape
linked by target "opencv_test_videoio" in directory E:/Files/openCV/opencv/sources/modules/videoio
linked by target "opencv_videoio" in directory E:/Files/openCV/opencv/sources/modules/videoio
linked by target "opencv_videoio" in directory E:/Files/openCV/opencv/sources/modules/videoio
linked by target "opencv_perf_videoio" in directory E:/Files/openCV/opencv/sources/modules/videoio
linked by target "opencv_cudacodec" in directory E:/Files/openCV/opencv/sources/modules/cudacodec
linked by target "opencv_cudacodec" in directory E:/Files/openCV/opencv/sources/modules/cudacodec
linked by target "opencv_perf_cudacodec" in directory E:/Files/openCV/opencv/sources/modules/cudacodec
linked by target "opencv_test_cudacodec" in directory E:/Files/openCV/opencv/sources/modules/cudacodec
linked by target "opencv_highgui" in directory E:/Files/openCV/opencv/sources/modules/highgui
linked by target "opencv_highgui" in directory E:/Files/openCV/opencv/sources/modules/highgui
linked by target "opencv_test_highgui" in directory E:/Files/openCV/opencv/sources/modules/highgui
linked by target "opencv_perf_objdetect" in directory E:/Files/openCV/opencv/sources/modules/objdetect
linked by target "opencv_objdetect" in directory E:/Files/openCV/opencv/sources/modules/objdetect
linked by target "opencv_objdetect" in directory E:/Files/openCV/opencv/sources/modules/objdetect
linked by target "opencv_test_objdetect" in directory E:/Files/openCV/opencv/sources/modules/objdetect
linked by target "opencv_ts" in directory E:/Files/openCV/opencv/sources/modules/ts
linked by target "opencv_ts" in directory E:/Files/openCV/opencv/sources/modules/ts
linked by target "opencv_test_features2d" in directory E:/Files/openCV/opencv/sources/modules/features2d
linked by target "opencv_features2d" in directory E:/Files/openCV/opencv/sources/modules/features2d
linked by target "opencv_features2d" in directory E:/Files/openCV/opencv/sources/modules/features2d
linked by target "opencv_perf_features2d" in directory E:/Files/openCV/opencv/sources/modules/features2d
linked by target "opencv_calib3d" in directory E:/Files/openCV/opencv/sources/modules/calib3d
linked by target "opencv_calib3d" in directory E:/Files/openCV/opencv/sources/modules/calib3d
linked by target "opencv_test_calib3d" in directory E:/Files/openCV/opencv/sources/modules/calib3d
linked by target "opencv_perf_calib3d" in directory E:/Files/openCV/opencv/sources/modules/calib3d
linked by target "opencv_cudafeatures2d" in directory E:/Files/openCV/opencv/sources/modules/cudafeatures2d
linked by target "opencv_cudafeatures2d" in directory E:/Files/openCV/opencv/sources/modules/cudafeatures2d
linked by target "opencv_test_cudafeatures2d" in directory E:/Files/openCV/opencv/sources/modules/cudafeatures2d
linked by target "opencv_perf_cudafeatures2d" in directory E:/Files/openCV/opencv/sources/modules/cudafeatures2d
linked by target "opencv_cudalegacy" in directory E:/Files/openCV/opencv/sources/modules/cudalegacy
linked by target "opencv_cudalegacy" in directory E:/Files/openCV/opencv/sources/modules/cudalegacy
linked by target "opencv_test_cudalegacy" in directory E:/Files/openCV/opencv/sources/modules/cudalegacy
linked by target "opencv_perf_cudalegacy" in directory E:/Files/openCV/opencv/sources/modules/cudalegacy
linked by target "opencv_cudaobjdetect" in directory E:/Files/openCV/opencv/sources/modules/cudaobjdetect
linked by target "opencv_cudaobjdetect" in directory E:/Files/openCV/opencv/sources/modules/cudaobjdetect
linked by target "opencv_perf_cudaobjdetect" in directory E:/Files/openCV/opencv/sources/modules/cudaobjdetect
linked by target "opencv_test_cudaobjdetect" in directory E:/Files/openCV/opencv/sources/modules/cudaobjdetect
linked by target "opencv_cudaoptflow" in directory E:/Files/openCV/opencv/sources/modules/cudaoptflow
linked by target "opencv_cudaoptflow" in directory E:/Files/openCV/opencv/sources/modules/cudaoptflow
linked by target "opencv_test_cudaoptflow" in directory E:/Files/openCV/opencv/sources/modules/cudaoptflow
linked by target "opencv_perf_cudaoptflow" in directory E:/Files/openCV/opencv/sources/modules/cudaoptflow
linked by target "opencv_perf_cudastereo" in directory E:/Files/openCV/opencv/sources/modules/cudastereo
linked by target "opencv_cudastereo" in directory E:/Files/openCV/opencv/sources/modules/cudastereo
linked by target "opencv_cudastereo" in directory E:/Files/openCV/opencv/sources/modules/cudastereo
linked by target "opencv_test_cudastereo" in directory E:/Files/openCV/opencv/sources/modules/cudastereo
linked by target "opencv_test_stitching" in directory E:/Files/openCV/opencv/sources/modules/stitching
linked by target "opencv_stitching" in directory E:/Files/openCV/opencv/sources/modules/stitching
linked by target "opencv_stitching" in directory E:/Files/openCV/opencv/sources/modules/stitching
linked by target "opencv_perf_stitching" in directory E:/Files/openCV/opencv/sources/modules/stitching
linked by target "opencv_superres" in directory E:/Files/openCV/opencv/sources/modules/superres
linked by target "opencv_superres" in directory E:/Files/openCV/opencv/sources/modules/superres
linked by target "opencv_test_superres" in directory E:/Files/openCV/opencv/sources/modules/superres
linked by target "opencv_perf_superres" in directory E:/Files/openCV/opencv/sources/modules/superres
linked by target "opencv_videostab" in directory E:/Files/openCV/opencv/sources/modules/videostab
linked by target "opencv_videostab" in directory E:/Files/openCV/opencv/sources/modules/videostab
linked by target "opencv_traincascade" in directory E:/Files/openCV/opencv/sources/apps/traincascade
linked by target "opencv_createsamples" in directory E:/Files/openCV/opencv/sources/apps/createsamples
linked by target "opencv_annotation" in directory E:/Files/openCV/opencv/sources/apps/annotation
linked by target "opencv_visualisation" in directory E:/Files/openCV/opencv/sources/apps/visualisation
linked by target "opencv_version" in directory E:/Files/openCV/opencv/sources/apps/version
Configuring incomplete, errors occurred!
See also "E:/Files/openCV/opencv/newbuild/CMakeFiles/CMakeOutput.log".
See also "E:/Files/openCV/opencv/newbuild/CMakeFiles/CMakeError.log".

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Look at this article, it's good, just do it.
https://stackoverflow.com/questions/46584000/cmake-error-variables-are-set-to-notfound
How do I download the Protobuf-CPP file?
Open the path E:\Files\openCV\opencv_contrib-3.2.0\ modules\ DNN \cmake\download_protobuf. Cmake
and open
to put the two together for download: my download is
https://github.com/google/protobuf/releases/download/v3.1.0/protobuf-cpp-3.1.0.tar.gz
Error of three

CMake Error at CMakeLists.txt:98 (project):
  No CMAKE_CXX_COMPILER could be found.

CMake Error at CMakeLists.txt:98 (project):
No CMAKE_C_COMPILER could be found.

1234567

Regarding [java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Boolean], combined with examples

Description:
I use the Groovy language, but it is quite Java compatible, except that it is a weakly typed language relative to Java
Situation:
If a string is null, no unit will be added. The screenshot is shown below, and the data after “Distance (m) :” should be intercepted

Original script:

 if( !distance.endsWith(")") && !distance.endsWith("m") && distance != null && distance.length() != 0) {
    distance = distance + 'm';
}

Error: Collection exception. Exception information [Java. Lang. ClassCastException: Java. Lang. Integer always be cast to Java. Lang. Boolean]
Later changed the script:

if(!distance.endsWith(")") && !distance.endsWith("m") && distance != null && distance.toString().length() != 0) {
    distance = distance + 'm';
}

Exception resolution. Integer is int the wrapper class, there is no length () this method, the specific introduction, see this post:
https://blog.csdn.net/andyzhaojianhui/article/details/84324466

How to Fix Error sal.h(2367)

Error:

1>C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include sal.h(2367): error C2143: syntax error: missing ‘;’ before ‘string’

C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\sal.h(2367): error C2059:Syntax error: ‘string’

C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include sal.h(2367): error C2143: syntax error: missing ‘;’ before ‘{‘

C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include sal.h(2367): error C2447: ‘{‘: missing function header(Old Formal List?)

I can’t believe you forgot the semicolon after the class statement;

C error C2143 syntax error missing before ‘type’

1. Problem descriptionThe problem display is shown in the figure: All ides are VS2010.

Source code display: Source code is a Fahrenheit to Celsius temperature of the program.

#include <stdio.h>

//void Fahr_Celsius()
int main()
{
	//int fahr, celsius;
	int lower, upper, step;
	lower = 0;
	upper = 300;
	step = 20;
	printf("Hello world!\n");
	int fahr, celsius;
	fahr = lower;
	while (fahr<=upper)
	{
		celsius = 5 * (fahr - 32)/9;
		printf("%d\t%d\n", fahr, celsius);
		fahr = fahr + step;
	}
	return 0;
}

2. Cause of the problem

In C, all variables must be declared before they are used. Declarations are usually placed at the beginning, before any executable statement. Declare the properties used to describe variables, which consist of a type name and a variable scale.

Here because the variable declaration statement on line 12 is placed after the executable statement.

3. Problem solving

Place all variable declarations before all executable statements. The modified code is as follows:

#include <stdio.h>

int main()
{
	int fahr, celsius;
	int lower, upper, step;
	lower = 0;
	upper = 300;
	step = 20;
	printf("Hello world!\n");
	//int fahr, celsius;
	fahr = lower;
	while (fahr<=upper)
	{
		celsius = 5 * (fahr - 32)/9;
		printf("%d\t%d\n", fahr, celsius);
		fahr = fahr + step;
	}
	
	return 0;

}

4. Problem summary
Although this problem is a stipulation of C language, it mainly appears in the compilation stage, which is interpreted by the compiler. This problem will not appear in VS2017, but will appear in VS2010.

Unknown failure (at android.os.Binder.execTransact(Binder.java:565))Error while Installing APKs

Recently, when I was doing program debugging, I encountered a VIVO mobile phone and was always prompted with this problem. Other VIVO mobile phones did not appear and the phone was connected. Adb can also find this device and open the debugging tool



Uninstall and delete the existing application. If you want to uninstall the existing application, click ok and the following error will appear:

Unknown failure (at android.os.Binder.execTransact(Binder.java:565))
Error while Installing APKs

The original application did not uninstall, and then oneself manually uninstall, and clean up the memory, run again or the same results, I thought it was my computer’s problem, change a computer test or the same, this is a little awkward, then look up data, after testing, this method is still effective

File —> Settings – & gt; Build,Execution,Deployment —> Instant Run
Turn off the Enable Instant Run to option and rerun it again

You’ve done all this and you’ll be wondering why you can do it this way?Then take a look at what InstantRun means:
Android Studio2.0 started introducing InstantRun as a way to reduce the amount of time spent updating apps during Run and Debug. While the first Build may take a bit longer to complete, InstantRun pushes updates to the device without having to rebuild a new APK, making it easier to spot changes quickly. Note: InstantRun only supports Gradle versions of 2.0.0 and minSdkVersion of 15 in Build.gralde files. For better use, set the minSdkVrsion above 21.
Android Stuido projects using Gralde2.0.0 and above will default to Instant Run.

Install ubuntu system, report error WslRegisterDistribution failed with error: 0x8007019e

Installing ubuntu on the Windows App Store, WslRegisterDistribution failed with error: 0x8007019e
1. An error:

Installing, this may take a few minutes...
Installation Failed!
Error: 0x8007019e
Press any key to continue...

 
2. Reason:
Windows subsystem support is not installed.
 

3. Solution:
1. Win +x, select Windows PowerShell (administrator)
2. Input: 

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

3. Enter, type Y, and restart! 4. Reopen the installed subsystem, wait a few minutes, and enter your account and password.