Author Archives: Robins

[Solved] QT cmak Compile Error: CMake Error: The source.. does not match the soused

**Cmake error: the source… Does not match the used to generate cache Re-run cmake…

Solution:
Delete the CMakeLists.txt.user file in the project.

problem is solved. Later, it is found that the file is also a cache file, which contains the compilation status information of the project before, such as the debug directory. In cmake, if there is this file, the compiler will use the relevant cache information in this file, so various errors will occur:

delete the file and restart cmake, A new file is regenerated.

[Solved] sbatch: error: Batch script contains DOS line breaks (\r\n)

When using the school HPC cluster, it is found that the batch task written by win10 reports an error, which can be solved with dos2unix.

Bugs and Solutions

This problem is due to the difference between UNIX and DOS blank line format. Just use code conversion
errors are reported as follows:

sbatch: error: Batch script contains DOS line breaks (\r\n)
sbatch: error: instead of expected UNIX line breaks (\n).

Enter dos2unix:

dos2unix yourfilename

[Solved] org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘xxx‘

1. Problem description

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.aop.config.internalAutoProxyCreator': Initialization of bean failed; nested exception is java.lang.NoClassDefFoundError: org/aspectj/lang/annotation/Around

2. Anomaly analysis

org. springframework. beans. factory. BeanCreationException: Error creating bean with name ‘XXX’

This exception is: bean injection failure exception. If this exception occurs, the corresponding bean cannot be found! The reasons for bean injection failure include but are not limited to the following:

The corresponding bean is not annotated; There is an error adding annotation to the corresponding bean, for example, the @service of spring is incorrectly selected as Dubbo; Select the wrong automatic injection method, etc.

Caused by: java.lang.ClassNotFoundException: org.aspectj.lang.annotation. Around

Missing aspect, Maven coordinate of AOP

   <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>4.3.12.RELEASE</version>
        </dependency>

After adding dependency, the problem is solved

[Solved] Artifact spbjh:war exploded: Error during artifact deployment. See server log for details.

Resolve artifact spbjh: War expanded: error during artifact deployment See server log for details.

Sometimes, if the project cannot be started, the following error will be reported

1 First, let’s delete this place

2. Delete this

replace this with the configuration in its corresponding directory

sometimes the jar package conflicts, which will also lead to startup failure

Add

again to start.

[Solved] ERROR: Cannot uninstall ‘PyYAML‘. It is a distutils installed project and thus we cannot accurately

ERROR: Cannot uninstall ‘PyYAML’. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
Problem Description.
When installing transformers, an error is reported: “ERROR: Cannot uninstall ‘PyYAML’. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.”

pip install transformers

Solution:

You only need to modify the original installation command to:

pip install transformers --ignore-installed PyYAML

Just.

Similar problems can be solved in this way.

Module not found: Error: Can‘t resolve ‘sass-loader‘ in…

sass-loader！

Failed to compile.

./src/main.js
Module not found: Error: Can't resolve 'sass-loader' in 'E:\study_software\JetBrains\WebStorm2021\WebstormProjects\vue-element-admin-master'


npm install sass-loader sass webpack --save-dev
npm install --save-dev node-sass
or
cnpm install node-sass --save

sass-loader: https://www.npmjs.com/package/sass-loader

[Solved] Hadoop Error: Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster

Problem Description:

When testing yarn , starting the wordcount test case fails, and the following prompt appears

Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster

Please check whether your etc/hadoop/mapred-site.xml contains the below configuration:
<property>
  <name>yarn.app.mapreduce.am.env</name>
  <value>HADOOP_MAPRED_HOME=${full path of your hadoop distribution directory}<alue>
</property>
<property>
  <name>mapreduce.map.env</name>
  <value>HADOOP_MAPRED_HOME=${full path of your hadoop distribution directory}<alue>
</property>
<property>
  <name>mapreduce.reduce.env</name>
  <value>HADOOP_MAPRED_HOME=${full path of your hadoop distribution directory}<alue>
</property>

For more detailed output, check the application tracking page: http://hadoop103:8088/cluster/app/application_1638539388325_0001 Then click on links to logs of each attempt.
. Failing the application.

Cause analysis

Cannot find the main classpath

Solution:

Follow the prompts to add a classpath

At yen site XML and mapred site XML, add the following

<property>
	<name>yarn.application.classpath</name>
	<value>
		${HADOOP_HOME}/etc/*,
		${HADOOP_HOME}/etc/hadoop/*,
		${HADOOP_HOME}/lib/*,
		${HADOOP_HOME}/share/hadoop/common/*,
		${HADOOP_HOME}/share/hadoop/common/lib/*,
		${HADOOP_HOME}/share/hadoop/mapreduce/*,
		${HADOOP_HOME}/share/hadoop/mapreduce/lib-examples/*,
		${HADOOP_HOME}/share/hadoop/hdfs/*,
		${HADOOP_HOME}/share/hadoop/hdfs/lib/*,
		${HADOOP_HOME}/share/hadoop/yarn/*,
		${HADOOP_HOME}/share/hadoop/yarn/lib/*,
	</value>
</property>

Because ${hadoop_home} is used, you need to inherit environment variables in Yard site XML is added as follows, where Hadoop_Home is what we need. Just put the rest as needed. I put some commonly used ones here

<!--Inheritance of environment variables-->
<property>
  <name>yarn.nodemanager.env-whitelist</name>，
  <value>JAVA_HOME,HADOOP_HOME,HADOOP_COMMON_HOME, HADOOP_ HDFS_HOME, HADOOP_ CONF_DIR, CLASSPATH_PREPEND_DISTCACHE, HADOOP_YARN_HOME, HADOOP_MAPRED_HOME
  </value>
</property>

If the yarn service related to multiple servers is enabled, remember to configure each server

[Solved] Conda install Error: An HTTP error occurred when trying to retrieve this URL. HTTP errors are often…

1. Problem Description: prepare to execute the following command in Anaconda prompt:

conda install -c stellargraph stellargraph

An HTTP error occurred when trying to retrieve this URL

HTTP errors are often intermittent, and a simple retry will get you on your way.

2. Solution: open “C:\users\your computer name\condarc

Delete all lines in condarc, copy and paste the following code, and then save:

channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
  - defaults
show_channel_urls: true
ssl_verify: true

(anyway, I can finally succeed in this file with the above code. I don’t know if you can do it.

3. Re run

conda install -c stellargraph stellargraph
    1. as long as you don’t report an error (try it several times, it may not work well). Maybe it will take a long time. Please be patient. If you want to improve the speed, you’d better create a new virtual environment and install the software, which will be much faster

Create a new environment ( CONDA env create - n env_name ) and install the software. In this way, the compatibility with the existing software will not be considered. It can also greatly reduce the search space and improve the speed of resolving software dependencies.

[Solved] spring boot security Start Error: ‘login.html?error‘ is not a valid redirect URL

Configure custom login page

http.formLogin().loginPage("login.html")  //Custom login page The error is caused by this, the page needs to be preceded by a slash
                .loginProcessingUrl("/login") // the address of the action in the login form, which is the path of the authentication request
                .usernameParameter("username")
                .passwordParameter("password")
                .defaultSuccessUrl("/home"); //Default jump path after successful login

Change to

http.formLogin().loginPage("/login.html")
                .loginProcessingUrl("/login")
                .usernameParameter("username")
                .passwordParameter("password")
                .defaultSuccessUrl("/home");

[Solved] ERROR: Cannot uninstall ‘wrapt‘. It is a distutils installed project and thus we cannot accurately d

ERROR: Cannot uninstall ‘wrapt’. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
Problem Description.
When installing tensorflow, an error is reported: “ERROR: Cannot uninstall ‘wrapt’. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.”

pip install tensorflow==1.15.0

Solution:

Change the command to:

pip install tensorflow==1.15.0 --ignore-installed wrapt