Google+ authorization problem.

Hello. I have problem with singing in to Google+ account in im game. When the play button is pressed for the very first time game want u to sing in. Problem is that game crash before login screen appears and application throw communicate “application has stopped”.

It happens only if I download game from Google play (in beta test mode).
When I build apk, send it on my phone and run everything works correctly.

Thanks for help.

Did you try following the steps described here: https://developers.google.com/+/mobile/android/getting-started ?