Error: “setFile(null,false) call failed” when using log4j

Question

I have added log4j.properties file in source folder of project but I am still getting a log4j:error.

Here is my Log4j.properties file:

Answer 1

Try executing your command with sudo(Super User), this worked for me :)
Run : $ sudo your_command
After than enter the super user password. Thats All..