Author Archives: Robins

[Solved] Ubuntu conda ProxyError: Conda cannot proceed due to an error in your proxy configuration

Using conda install with a proxy may result in the following error:

ProxyError: Conda cannot proceed due to an error in your proxy configuration.
Check for typos and other configuration errors in any ‘.netrc’ file in your home directory,
any environment variables ending in ‘_PROXY’, and any other system-wide proxy
configuration settings.

 

Solution:
Input the command:env | grep -i "_PROXY" and here is the outcome:

HTTP_PROXY=http://http://localhost:8888/
https_proxy=http://http://localhost:8888/
http_proxy=http://http://localhost:8888/
no_proxy=localhost,127.0.0.0/8,::1
NO_PROXY=localhost,127.0.0.0/8,::1
HTTPS_PROXY=http://http://localhost:8888/

Then enter the command unset to delete these agents:

unset  https_proxy
unset  http_proxy
unset  no_proxy
unset  HTTPS_PROXY
unset  HTTP_PROXY
unset  NO_PROXY

Then enter CONDA installation command to solve the problem successfully

[Solved] Error building SqlSession. ### The error may exist in com/itrs/mapper/OrderMapper.xml

Error reporting information

org.apache.ibatis.exceptions.PersistenceException: 
### Error building SqlSession.
### The error may exist in com/itrs/mapper/OrderMapper.xml
### The error occurred while processing mapper_resultMap[orderMap]
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'com/itrs/mapper/OrderMapper.xml'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'order'.  Cause: java.lang.ClassNotFoundException: Cannot find class: order

	at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
	at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:80)
	at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:64)
	at com.itrs.test.MybatisTest.test1(MybatisTest.java:33)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'com/itrs/mapper/OrderMapper.xml'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'order'.  Cause: java.lang.ClassNotFoundException: Cannot find class: order
	at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:121)
	at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:98)
	at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:78)
	... 24 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'com/itrs/mapper/OrderMapper.xml'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'order'.  Cause: java.lang.ClassNotFoundException: Cannot find class: order
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:122)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:94)
	at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:374)
	at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:119)
	... 26 more
Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'order'.  Cause: java.lang.ClassNotFoundException: Cannot find class: order
	at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:118)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:262)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:253)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:245)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:118)
	... 29 more
Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'order'.  Cause: java.lang.ClassNotFoundException: Cannot find class: order
	at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:120)
	at org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:149)
	at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:116)
	... 33 more
Caused by: java.lang.ClassNotFoundException: Cannot find class: order
	at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:200)
	at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:89)
	at org.apache.ibatis.io.Resources.classForName(Resources.java:261)
	at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:116)
	... 35 more

Problem Description:

Here are: error parsing SQL mapper configuration, error parsing mapper XML and type typeexception: unable to resolve type alias “order”.

Cause analysis:

Unable to resolve type name ‘ order ‘, please see

sqlMapConfig.xml. It is found that the custom name order is omitted

Solution:

<!--Add a custom name-->
    <typeAliases>
        <typeAlias type="com.itrs.domain.User" alias="user"></typeAlias>
        <typeAlias type="com.itrs.domain.Order" alias="order"></typeAlias>
    </typeAliases>

Add a custom name to solve the problem

### Error building SqlSession. ### The error may exist in com/itrs/mapper/UserMapper.xml ### Cause:

Project scenario:

Mybatis

Problem Description:

org.apache.ibatis.exceptions.PersistenceException: 
### Error building SqlSession.
### The error may exist in com/itrs/mapper/UserMapper.xml
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/itrs/mapper/UserMapper.xml

	at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
	at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:80)
	at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:64)
	at com.itrs.test.MybatisTest.test1(MybatisTest.java:21)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69)
	at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33)
	at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220)
	at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53)
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource com/itrs/mapper/UserMapper.xml
	at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:121)
	at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:98)
	at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:78)
	... 24 more
Caused by: java.io.IOException: Could not find resource com/itrs/mapper/UserMapper.xml
	at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:114)
	at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:100)
	at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:372)
	at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:119)
	... 26 more

Cause analysis:

it is the path problem.


Solution:

When creating files under resources, use the following methods to create files

Don’t write it as com.xx.mapper.xxxxx.xml

TF Error: Error: TF_DENORMALIZED_QUATERNION [How to Solve]

1. Problem

HDL locationing Error:

Error: TF_DENORMALIZED_QUATERNION: Ignoring transform for
child_frame_id “odom” from authority “unknown_publisher” because of an
invalid quaternion in the transform (0.0 0.0 0.983641 0.122190)

2. Solution

From the error report can be seen, the tip is a quadratic number of problems, the key is to say that there is no normalization, the release of TF has strict requirements, the quadratic number must be normalized, that is, xyzw squared and equal to 1, if not equal to the error reported above, a simple calculation, the above error tip quadratic number is: (0.0 0.0 0.983641 0.122190), that is, 0.98364 1 2 + 0.12219 0 2 = 0.982480012981 0.983641^2 + 0.122190 ^2 = 0.9824800129810.983641^2 + 0.122190^2 = 0.982480012981, obviously not equal to 1, so there will be the above problem, the solution is also simple, before the output Do a normalization process can be.

         Eigen::Quaterniond quatern = {0.0 0.0 0.983641 0.122190}; // w x y z
         quatern.normalize();
         odom_trans.transform.rotation.x = quatern.x();
         odom_trans.transform.rotation.y = quatern.y();
         odom_trans.transform.rotation.z = quatern.z();
         odom_trans.transform.rotation.w = quatern.w();
         odom_trans.header.stamp = stamp;
         odom_trans.header.frame_id = "map";
         odom_trans.child_frame_id = odom_child_frame_id;
         tf_broadcaster.sendTransform(odom_trans);

[Solved] kubeadm join Cluster Error: error execution phase kubelet-start

preface

An error is reported when adding a k8s-node using kubedm join , as follows:

error execution phase kubelet-start: error uploading crisocket: timed out waiting for the condition

Solution:

1 reset the cluster configuration of this machine

kubeadm reset -f

2 stop service

sudo tee /tmp/test.sh <<-'EOF'
systemctl stop kubelet kube-proxy docker containerd
ps -ef | grep containerd | awk '{print $2}' | xargs -I {} kill -9 {}
rm -rf /etc/systemd/system/kube-proxy.service
rm -rf /etc/systemd/system/kubelet.service
systemctl stop zabbix-agent.service
systemctl disable zabbix-agent.service
systemctl stop node_exporter_custom.service
systemctl disable node_exporter_custom.service
systemctl reset-failed
rm -rf /usr/local/bin/kube*
EOF
chmod +x /tmp/test.sh && bash /tmp/test.sh

3 start docker

systemctl start docker

4 join the cluster

Run kubedm token create -- print-join-command on Master to get token information

Then execute the following command on the node node to rejoin the k8s cluster

# k8s-node
kubeadm join 172.18.12.23:6443 --token okt9c2.edidk4m2yfim31su \
--discovery-token-ca-cert-hash sha256:0a6cb9f97106782102840e142eda33dc3dc071aff1af436f90d43699acdc3751

Success information

5 verify on k8s-master 

kubectl get node
kubectl get pod -A