Google play says: “You need to use a different package name” - why?

Question

I have already published an app called com.mycompany.mygame on google play.

I then decided to publish an ad free version of it. I did not change the package name in

Answer 1

Regardless of the name of the .apk file, the package name of the Application contents inside it must be unique.

You can use refactor-rename to change this, though make sure that the change penetrates to the manifest file, proguard configuration, etc.