How to resolve the issue of log4j2 not generating log files?

If log4j2 is not generating log files, it could be due to several reasons:

1. Configuration file error: Firstly, make sure that the log4j2 configuration file is correctly set up to specify the destination file for logging output. In the configuration file, you can specify a file path to store the log output. Check the and sections in the configuration file to ensure that you have correctly specified the file path.
2. Permission issue: If you try to write log files to a directory that requires administrator rights, but your application does not have sufficient permissions to write the file, the log file may not be generated. Make sure your application has the necessary permissions to write to the specified directory.
3. Log level issue: If your log level configuration is set to only record higher level logs (e.g. only record logs at ERROR level), then there may not be any logs meeting the requirements being written to the file. Check the section in the configuration file to ensure that you have set the log level to the appropriate level.
4. Dependency issue with log4j2: Your application may not be able to generate log files if it does not properly include the required dependencies for log4j2. Make sure that your application includes the correct log4j2 dependencies.

If you still can’t solve the problem, you can gather more clues by checking the app’s debug logs or recording the system’s exceptions to determine the cause of the issue.