You can get rid of the meaningless warnings and errors by deleting the .idea folder that Android Studio 1.5 created and importing the the project into Android Studio 2.0 as a gradle project. It will recreate the .idea folder automatically.
You can get rid of the meaningless warnings and errors by deleting the .idea folder that Android Studio 1.5 created and importing the the project into Android Studio 2.0 as a gradle project. It will recreate the .idea folder automatically.