E: List directory/var/lib/apt/lists/partial is missing. – acquire (13: permission denied)
solution: access the container with root permission
0 means root
docker exec -u 0 -it Container_name /bin/bash
Author Archives: Robins
wind System Black Windows Start hadoop Error [How to Solve]
wind system black window start hadoop error solution (continuously updated)
cmd command start process error cmd start prompt io error
cmd command start process error
Failed to setup local dir /tmp/hadoop-GK/nm-local-dir, which was marked as good. org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Permissions incorrectly set for dir /tmp/hadoop-GK/nm-local-dir/nmPrivate, should be rwx------, actual value = rwxrwx-
Solution: Run cmd as administrator
cmd startup prompt io error
IOException: Incompatible clusterIDs in D:\hadoop\3.0.3\data\dfs\datanode: namenode clusterID = CID-45d4d17f-96fd-4644-b0ee- 7835ef5bc790; datanode clusterID = CID-01f27c2a-6229-4a10-b098-89e89d4c62e4
Solution: Delete the data directory in hadoop and restart
Vue Error: renren-fast-vue execute npm install Error [How to Solve]
Resolution NPM: unable to load file D:\code\Renren fast Vue\node_ modules.bin\npm.ps1
There are four steps
It is forbidden to run scripts on this system, that is, you do not have permission. First use the following command:
get-ExecutionPolicy
If output:
Restricted
The above indicates restricted and the status is prohibited. Then give a permission:
Set-ExecutionPolicy -Scope CurrentUser
Re enter:
RemoteSigned
The above is OK. If you want to verify it, enter get executionpolicy and output remotesigned
==================================================================
Build failed with error code: 1
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected] (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
npm ERR! code ELIFECYCLE
npm ERR! [email protected] postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Administrator\AppData\Roaming\npm-cache\_logs\2021-12-03T02_48_23_436Z-debug.log
PS D:\work\guigu\guli-vue\renren-fast-vue> get-ExecutionPolicy
Restricted
PS D:\work\guigu\guli-vue\renren-fast-vue> Set-ExecutionPolicy -Scope CurrentUser
cmdlet Set-ExecutionPolicy in command pipeline location 1
Please provide values for the following parameters:
ExecutionPolicy: RemoteSigned
PS D:\work\guigu\guli-vue\renren-fast-vue> get-ExecutionPolicy
RemoteSigned
PS D:\work\guigu\guli-vue\renren-fast-vue> npm install
[Solved] Error creating bean with name ’emf’ defined in org.ngrinder.infra.config.DatabaseConf
This similar problem has been encountered several times, but you can still find the error every time you report an error. When reporting an error, think about what you modified earlier, and then go to see if the corresponding code has the same path. Or attribute problems. But I can’t find the error report this time. The previous version before my modification can still be started. When I came to work the next day, I reported an error as soon as it was started. It has not been solved yet. If it is solved, the answer will be pasted. The following error reasons:
Code text:
01-Dec-2021 18:58:11.804 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.ApplicationContext.log Spring WebApplicationInitializers detected on classpath: [org.springframework.boot.autoconfigure.jersey.JerseyAutoConfiguration$JerseyWebApplicationInitializer@b0ebd27]
01-Dec-2021 18:58:11.953 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.ApplicationContext.log Initializing Spring root WebApplicationContext
01-Dec-2021 18:58:15.892 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.StandardContext.listenerStart 异常将上下文初始化事件发送到类的侦听器实例.[org.springframework.web.context.ContextLoaderListener]
at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.preparePersistenceUnitInfos(DefaultPersistenceUnitManager.java:470)
at org.springframework.orm.jpa.persistenceunit.DefaultPersistenceUnitManager.afterPropertiesSet(DefaultPersistenceUnitManager.java:424)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:310)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:319)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574)
... 59 more
01-Dec-2021 18:58:15.911 信息 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina.core.ApplicationContext.log Closing Spring root WebApplicationContext
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'emf' defined in org.ngrinder.infra.config.DatabaseConfig: Invocation of init method failed; nested exception is java.lang.IllegalStateException: Conflicting persistence unit definitions for name 'ngrinder': file:/D:/zaixianStudy/0server/apache-tomcat-8.5.69/webapps/ngrinder-web/WEB-INF/lib/ngrinder-controller-3.4.4.jar, file:/D:/zaixianStudy/0server/apache-tomcat-8.5.69/webapps/ngrinder-web/WEB-INF/classes
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
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.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1054)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:829)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:444)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:326)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4763)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5232)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:755)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:729)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:695)
at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1775)
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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:291)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:483)
at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:431)
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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:291)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)
at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
at java.security.AccessController.doPrivileged(Native Method)
at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)
at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
at sun.rmi.transport.Transport$1.run(Transport.java:200)
at sun.rmi.transport.Transport$1.run(Transport.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalStateException: Conflicting persistence unit definitions for name 'ngrinder': file:/D:/zaixianStudy/0server/apache-tomcat-8.5.69/webapps/ngrinder-web/WEB-INF/lib/ngrinder-controller-3.4.4.jar, file:/D:/zaixianStudy/0server/apache-tomcat-8.5.69/webapps/ngrinder-web/WEB-INF/classes
The problem has been solved. Let’s talk about my handling method. I won’t talk about bullshit. I’ve met those interfaces with the same URL, no annotation, the same method name, wrong package, different versions, repeated POM files or inconsistent versions, and what reset projects empty Maven and download again. I’ve met them many times, I’ve tried it all. The answers on the Internet are the same, copy around. My situation is like this. I can run on the first day, but I can’t do it on the second day. I don’t have a clue about the error reported. I checked the GIT code again and again and found that there is nothing wrong and I can’t start. So I did the following work:
1. Find the local tomcat, delete the jar package in webapp and the compiled project file, delete the Tomcat configuration in the project, and reconfigure it
2. Check whether Maven is configured correctly, whether Maven is its own, whether the settings.xml file is correct, and the warehouse. There are many local versions of tomcat, Maven and JDK. I downloaded a lot to test the difference between versions before. After checking, click the navigation bar on the right, circle, refresh and brush several times
3. Click File >>>> ProjectStructure>>> Modules, delete all and reintroduce
4. Check whether the artifacts are correct, and there must be all of them
5. On the right navigation bar, refresh maven, clear, complex, package and run, which solves my problem.
The above is my solution. I have no problem with the code. If there is a problem with the code, don’t use it
[Solved] Pytorch c++ Error: Error checking compiler version for cl: [WinError 2] System cannot find the specified file.
1. Error information
(python37) H:\emd>python setup.py install
running install
running bdist_egg
running egg_info
creating emd.egg-info
writing emd.egg-info\PKG-INFO
writing dependency_links to emd.egg-info\dependency_links.txt
writing top-level names to emd.egg-info\top_level.txt
writing manifest file 'emd.egg-info\SOURCES.txt'
D:\Anaconda_app\envs\python37\lib\site-packages\torch\utils\cpp_extension.py:370: UserWarning: Attempted to use ninja as the BuildExtension backend but we
could not find ninja.. Falling back to using the slow distutils backend.
warnings.warn(msg.format('we could not find ninja.'))
reading manifest file 'emd.egg-info\SOURCES.txt'
writing manifest file 'emd.egg-info\SOURCES.txt'
installing library code to build\bdist.win-amd64\egg
running install_lib
running build_ext
D:\Anaconda_app\envs\python37\lib\site-packages\torch\utils\cpp_extension.py:305: UserWarning: Error checking compiler version for cl: [WinError 2] The system finds The specified file was not found.
warnings.warn(f'Error checking compiler version for {compiler}: {error}')
building 'emd' extension
creating build
creating build\temp.win-amd64-3.7
……
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(427): note: See the instantiation of "OptionalBase<at::Tensor>" to the class template being compiled.
References
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\ATen/core/TensorBody.h(734): note: See the class template instantiating "c10:: optional<at::Tensor>
" reference
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(395): warning C4624: "c10::trivially_ copyable_optimization_optional_base
<T>": the destructor has been implicitly defined as "deleted"
with
[
T=at::Tensor
]
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(476): warning C4814: “c10::optional<at::Tensor>::contained_val”: In C++
14, "constexpr" will not mean "constant"; please consider specifying "constant" explicitly
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(477): error C2556: “at::Tensor &c10::optional<at::Tensor>::contained_val
(void) const &”: Overloaded functions with “const at::Tensor &c10::optional<at::Tensor>::contained_val(void) const &”It just differs in the return type
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(471): note: See the declaration of "c10::optional<at::Tensor>::contained_val"
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(477): error C2373: “c10::optional<at::Tensor>::contained_val”: Redefinition.
Different type modifiers
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(471): note: see "c10::optional<at:: Tensor>::contained_val" declaration
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(476): warning C4814: "c10::optional< int64_t>::contained_val": in C++14
In C++14, "constexpr" will not mean "constant"; please consider specifying "constant" explicitly
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\ATen/core/TensorBody.h(774): note: see instantiating "c10:: optional<int64_t>" for the
References
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(477): error C2556: "int64_t &c10:: optional<int64_t>::contained_val(void)
const &": overloaded function is the same as "const int64_t &c10::optional<int64_t>::contained_val(void) const & " only differs in the return type
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(471): note: see "c10::optional<int64_t t>::contained_val" declaration
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(477): error C2373: "c10::optional< int64_t>::contained_val": redefinition; different
Same type modifier
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(471): note: see "c10::optional< int64_t t>::contained_val" declaration
D:\Anaconda_app\envs\python37\lib\site-packages\torch\include\c10/util/Optional.h(477): fatal error C1003: error count exceeds 100; compilation is being stopped
error: command 'D:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\x86_amd64\\cl.exe' failed with exit status 2
2. Error analysis
Analysis: From the above error message, we get the information
D:\Anaconda_app\envs\python37\lib\site-packages\torch\utils\cpp_extension.py:370: UserWarning: Attempted to use ninja as the BuildExtension backend but we could not find ninja… Falling back to using the slow distutils backend.
D:\Anaconda_app\envs\python37\lib\site-packages\torch\utils\cpp_extension.py:305: UserWarning: Error checking compiler version for cl: [WinError 2] The system could not find the
warnings.warn(f’Error checking compiler version for {compiler}: {error}’)
1) I need to use the ninja package to compile, but I don’t have ninja installed, so I need to install ninja first (pip install ninja)
2) Can’t find the cl.exe that meets the required version, according to the given D:\Anaconda_app\envs\python37\lib\site-packages\torch\utils\cpp_extension.py:305:
Jump to source code
try:
if sys.platform.startswith('linux'):
minimum_required_version = MINIMUM_GCC_VERSION
versionstr = subprocess.check_output([compiler, '-dumpfullversion', '-dumpversion'])
version = versionstr.decode().strip().split('.')
else:
minimum_required_version = MINIMUM_MSVC_VERSION
compiler_info = subprocess.check_output(compiler, stderr=subprocess.STDOUT)
match = re.search(r'(\d+)\.(\d+)\.(\d+)', compiler_info.decode().strip())
version = (0, 0, 0) if match is None else match.groups()
except Exception:
_, error, _ = sys.exc_info()
warnings.warn(f'Error checking compiler version for {compiler}: {error}')
return False
I am not on the Linux platform, but on the win platform, so I found the version requirements of cl.exe:
MINIMUM_MSVC_VERSION = (19, 0, 24215)
MSVC is a compiler called “cl.exe”. It is a compiler specially developed by Microsoft for vs.
The above statement states that the minimum version of MSVC requires MSVC 19.0.24215
3. Knowledge to be understood
_MSC_Ver is the built-in macro of MSVC compiler, which defines the version of the compiler
MS is short for Microsoft
C MSc is Microsoft’s C compiler
short for ver version.
So _MSC_Ver means: the version of Microsoft’s C compiler.
MSC 1.0 _MSC_VER == 100
MSC 2.0 _MSC_VER == 200
MSC 3.0 _MSC_VER == 300
MSC 4.0 _MSC_VER == 400
MSC 5.0 _MSC_VER == 500
MSC 6.0 _MSC_VER == 600
MSC 7.0 _MSC_VER == 700
MSVC++ 1.0 _MSC_VER == 800
MSVC++ 2.0 _MSC_VER == 900
MSVC++ 4.0 _MSC_VER == 1000 (Developer Studio 4.0)
MSVC++ 4.2 _MSC_VER == 1020 (Developer Studio 4.2)
MSVC++ 5.0 _MSC_VER == 1100 (Visual Studio 97 version 5.0)
MSVC++ 6.0 _MSC_VER == 1200 (Visual Studio 6.0 version 6.0)
MSVC++ 7.0 _MSC_VER == 1300 (Visual Studio .NET 2002 version 7.0)
MSVC++ 7.1 _MSC_VER == 1310 (Visual Studio .NET 2003 version 7.1)
MSVC++ 8.0 _MSC_VER == 1400 (Visual Studio 2005 version 8.0)
MSVC++ 9.0 _MSC_VER == 1500 (Visual Studio 2008 version 9.0)
MSVC++ 10.0 _MSC_VER == 1600 (Visual Studio 2010 version 10.0)
MSVC++ 11.0 _MSC_VER == 1700 (Visual Studio 2012 version 11.0)
MSVC++ 12.0 _MSC_VER == 1800 (Visual Studio 2013 version 12.0)
MSVC++ 14.0 _MSC_VER == 1900 (Visual Studio 2015 version 14.0)
MSVC++ 14.1 _MSC_VER == 1910 (Visual Studio 2017 version 15.0)
MSVC++ 14.11 _MSC_VER == 1911 (Visual Studio 2017 version 15.3)
MSVC++ 14.12 _MSC_VER == 1912 (Visual Studio 2017 version 15.5)
MSVC++ 14.13 _MSC_VER == 1913 (Visual Studio 2017 version 15.6)
MSVC++ 14.14 _MSC_VER == 1914 (Visual Studio 2017 version 15.7)
MSVC++ 14.15 _MSC_VER == 1915 (Visual Studio 2017 version 15.8)
MSVC++ 14.16 _MSC_VER == 1916 (Visual Studio 2017 version 15.9)
MSVC++ 14.2 _MSC_VER == 1920 (Visual Studio 2019 Version 16.0)
MSVC++ 14.21 _MSC_VER == 1921 (Visual Studio 2019 Version 16.1)
MSVC++ 14.22 _MSC_VER == 1922 (Visual Studio 2019 Version 16.2)
For example, MSVC + + 14.0 indicates that the version of Visual C + + is 14.0, and visual studio 2015 in parentheses indicates that the VC + + is included in Microsoft development tool visual studio 2015.
4. Review problems and Solutions
1) Ninja has been installed
2) compared with the table in the third part, I need to install vs2017 at least, but the vs version in the computer is 2015. Uninstall and reinstall. (some small partners can reinstall directly without uninstallation. They are used to uninstalling and reinstalling)
vs2015 complete uninstallation: use totaluninstaller to completely uninstall visual studio 2013 and 2015
vs2017 installation: vs2017 download address and installation tutorial (illustration)
The vs2017 download method in the above link is highly recommended. There is a simplified Chinese version of the installation boot program, which is very convenient~
vue-elemnt-admin npm run dev [How to Solve]
Vue elemnt admin NPM run dev run error
Description:
vue-element-admin 4.4.4
There is the previous Vue element admin template in the computer, which can run normally, but the following error will be prompted when pulling the latest version
Error content
DONE Compiled successfully in 4163ms 4:26:31 ├F10: PM┤
App running at:
- Local: http://localhost:9528
- Network: http://192.168.70.192:9528
Note that the development build is not optimized.
To create a production build, run npm run build.
events.js:291
throw er; // Unhandled 'error' event
^
Error: spawn cmd ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:267:19)
at onErrorNT (internal/child_process.js:469:16)
at processTicksAndRejections (internal/process/task_queues.js:84:21)
Emitted 'error' event on ChildProcess instance at:
at Process.ChildProcess._handle.onexit (internal/child_process.js:273:12)
at onErrorNT (internal/child_process.js:469:16)
at processTicksAndRejections (internal/process/task_queues.js:84:21) {
errno: 'ENOENT',
code: 'ENOENT',
syscall: 'spawn cmd',
path: 'cmd',
spawnargs: [ '/c', 'start', '""', '/b', 'http://localhost:9528' ]
}
Solution:
Comment out open: true in vue.config.js
Description of the modified part
For vue projects, find the devServer configuration proxy in vue.config.js
devServer: {
port: 8081, // port
// open: true, // whether to open the browser automatically
overlay: {
warnings: false,
errors: true
},
hot: true, // simply set to true, if the compiler reports an error, it will throw an error and you change it to the correct one, which will trigger a recompile again and the whole browser will be refreshed!
headers: {
'Access-Control-Allow-Origin': '*', //Allows access to all domains
'Access-Control-Allow-Credentials': 'true' // whether to allow subsequent requests to carry authentication information (cookies), the value can only be true, otherwise do not return
},
host: '0.0.0.0',
proxy: { // proxy
'/admin': {
target: 'http://192.168.1.100:8080', // backend port address
changeOrigin: true, // option to host the site virtually based on the name, if not configured, the request will report a 404 If the interface crosses the domain, this parameter needs to be configured
ws: true, // true/false, whether to proxy websockets
secure: false, // if the interface is https, you need to configure this parameter
pathRewrite: {
'^/admin': '' // pathRewrite is the request path to redirect to match the correct request address when using the proxy for proxying
}
}
}
}Jackson localdatetime to string error: jsr310 [How to Solve]
error code
public static void main(String[] args)throws Exception {
ObjectMapper objectMapper = new ObjectMapper();
final LocalDateTime localDateTime = LocalDateTime.now();
final String s = objectMapper.writeValueAsString(localDateTime);
System.out.println(s);
}
Error
reason
The date was not formatted during conversion
Solution:
public static void main(String[] args)throws Exception {
ObjectMapper objectMapper = new ObjectMapper();
// Date and time formatting
JavaTimeModule javaTimeModule = new JavaTimeModule();
// Set the serialization format of LocalDateTime
javaTimeModule.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
javaTimeModule.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
javaTimeModule.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern("HH:mm:ss")));
javaTimeModule.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
javaTimeModule.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern("yyyy-MM-dd")));
javaTimeModule.addDeserializer(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern("HH:mm:ss")));
objectMapper.registerModule(javaTimeModule);
final LocalDateTime localDateTime = LocalDateTime.now();
final String s = objectMapper.writeValueAsString(localDateTime);
System.out.println(s);
}
How to Solve c3p0 connect mysql8.0 Error
Environmental Science:
JDK1.7
mysql-connector-java 8.0.16
C3p0 configuration file
Error message:
Incompatibility between the JDK version and the jdbc driver
java.lang.unsupported classversionerror
Exception in thread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2"
java.lang.UnsupportedClassVersionError: com/mysql/cj/jdbc/Driver :
Unsupported major.minor version 52.0
Solve the problem: change the JDK to 1.8, restart, or report an error. Replace the configuration information of the URL successfully. Details are as follows:
Connect to the database using a profile
Create c3p0-config.xml in the SRC folder. The name and address cannot be changed
Profile code, note & amp; To escape to & amp; amp
<c3p0-config>
<default-config>
<property name="driverClass">com.mysql.cj.jdbc.Driver</property>
<property name="jdbcUrl">jdbc:mysql://localhost:3306/webdemo?useSSL=false&serverTimezone=UTC</property>
<property name="user">root</property>
<property name="password">root</property>
<property name="initialPoolSize">10</property>
<property name="maxIdleTime">30</property>
<property name="maxPoolSize">100</property>
<property name="minPoolSize">10</property>
<property name="maxStatements">200</property>
</default-config>
</c3p0-config>Test code
package cn.wahll.test;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.junit.Test;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
public class c3p0Demo {
@Test
public void c3p0PoolTest() throws Exception {
//Find the default configuration directly under the configuration file
ComboPooledDataSource dataSource = new ComboPooledDataSource();
Connection conn = dataSource.getConnection();
String sql = "INSERT INTO category VALUES('bsafvb','asdgg')";
PreparedStatement preparedStatement = conn.prepareStatement(sql);
preparedStatement.executeUpdate();
}
}
How to Solve paddleOCR recognition of curved text Error
Lower the version of paddlepaddle from 2.2.0 to 2.1.3 and you’re done. Note that there are two commands to run:
python tools/export_model.py -c configs/det/det_r50_vd_sast_totaltext.yml -o Global.checkpoints="./models/sast_r50_vd_total_text/best_accuracy" Global.save_inference_dir="./inference/det_sast_tt" python3 tools/infer/predict_det.py --det_algorithm="SAST" --image_dir="./doc/imgs_en/img_10.jpg" --det_model_dir="./inference/det_sast_tt/" --det_sast_polygon=True --use_gpu=False
/home/PaddleOCR {release/2.3} python3 tools/infer/predict_det.py --det_algorithm="SAST" --image_dir="./doc/imgs_en/img623.jpg" --det_model_dir="./inference/det_sast_tt/" --det_sast_polygon=True --use_gpu=False
grep: warning: GREP_OPTIONS is deprecated; please use an alias or script
/usr/local/lib/python3.8/site-packages/setuptools/depends.py:2: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
import imp
--- Fused 0 subgraphs into layer_norm op.
--- fused 0 pairs of fc gru patterns
Traceback (most recent call last):
File "tools/infer/predict_det.py", line 242, in <module>
res = text_detector(img)
File "tools/infer/predict_det.py", line 218, in __call__
post_result = self.postprocess_op(preds, shape_list)
File "/home/PaddleOCR/ppocr/postprocess/sast_postprocess.py", line 341, in __call__
poly_list = self.detect_sast(
File "/home/PaddleOCR/ppocr/postprocess/sast_postprocess.py", line 237, in detect_sast
instance_count, instance_label_map = self.cluster_by_quads_tco(
File "/home/PaddleOCR/ppocr/postprocess/sast_postprocess.py", line 164, in cluster_by_quads_tco
pred_tc = xy_text - tco
ValueError: operands could not be broadcast together with shapes (43093,2) (43093,8)
Jenkins Error: code=exited, status=127 [How to Solve]
Error when starting Jenkins
sudo systemctl start jenkinsError Messages:
● jenkins.service - LSB: Jenkins Automation Server Loaded: loaded (/etc/rc.d/init.d/jenkins; bad; vendor preset: disabled) Active: failed (Result: exit-code) since Fri 2021-12-03 11:46:25 CST; 4s ago Docs: man:systemd-sysv-generator(8) Process: 12366 ExecStart=/etc/rc.d/init.d/jenkins start (code=exited, status=127) Dec 03 11:46:25 localhost.localdomain systemd[1]: Starting LSB: Jenkins Automation Server... Dec 03 11:46:25 localhost.localdomain jenkins[12366]: Starting Jenkins /etc/rc.d/init.d/jenkins: line 120: daemonize: command not found Dec 03 11:46:25 localhost.localdomain jenkins[12366]: [FAILED] Dec 03 11:46:25 localhost.localdomain systemd[1]: jenkins.service: control process exited, code=exited status=127 Dec 03 11:46:25 localhost.localdomain systemd[1]: Failed to start LSB: Jenkins Automation Server. Dec 03 11:46:25 localhost.localdomain systemd[1]: Unit jenkins.service entered failed state. Dec 03 11:46:25 localhost.localdomain systemd[1]: jenkins.service failed. Two important messages Error code 127 daemonize command not found
Solution:
yum -y install daemonizePublic Key Retrieval is not allowed [How to Solve]
Error reporting restore:
Public Key Retrieval is not allowed
Background description
MySQL 8.0Springboot
Error reporting solution
Add the following to the URL of the project configuration file:
allowPublicKeyRetrieval=true
Detailed demonstration
Open the application.yaml file of springboot.
The application.xml file generated by springboot by default is only in different formats, which means the same and does not affect. The SSM project finds the URL configuration in mybatis, which is the same. Add allowpublickeyretrieval = true at the end of the URL. Note that you need to connect with “&”.
# Springboot application.yaml File
# DataSource Config
spring:
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
url: jdbc:mysql://localhost:3306/vueadmin?useUnicode=true&useSSL=false&characterEncoding=utf8&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
username: root
password: 123456[Solved] Vue Element Date plug-in reports an error in form validation
Error Messages:
Error in event handler for “el.form.change”: “TypeError: value.getTime is not a function”
Element UI’s date picker el-date-picker in addition to format value-format=”yyyy-MM-dd” and format=”yyyy-MM-dd”
In form validation.
{ type: 'date', required: true, message: 'Please select a date', trigger: 'change' }
There will be conflicts
Solution: modify the verification rules
type: ‘date’-> type: ‘string’
Possible causes of errors:
After the format conversion of the element UI, the binding value will be converted to a string, and the type: ‘date’ in the verification rule does not match. As for its error, it is converted to a string, not a date object, so there is no gettime method.