(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

I solve in with
Deletion both gen and gen [generated] from Source Folder.

Answer 2

I fixed the issue by deleting .iml files of modules causing the issue.

Answer 3

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

Answer 4

I had same problem. Solved it by completely deleting project, then clone it back from GIT.

Answer 5

I solved the problem by simply renaming the project. Right click on the project, then click refactor.

Answer 6

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: