(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

Just by going to the Artifacts Settings, Modules, Sources tab, and you will see 2 folders called "gen" and "gen[generated]", delete "gen" by clicking on the X icon to the right of it.

look: