(when adding jar) - Module “android” must not contain source root

Question

I\'m trying to add gdx-tools.jar to a libGDX project in IntelliJ. The result:

Module \"android\" must not contain source root \".../android/src\". The

Answer 1

By deleting it in the module, and then importing it again. solve the problem.

I think it's a bug of IDEA.Eclipse is fine.

Hopefully idea developers will see that