Map Activity doesn\'t showing map, it\'s appear as just white screen with zoom control buttons. Manifest File like this :
I just spent many hours on this. Turns out there was a different debug.keystore on my disk (search around to make sure you are using the correct one). Also, if you get this error, leave the app running for a bit. I got the error yet again when I added the correct SHA1/app in the Google API access, and while I was reading some docs suddenly the map appeared. Probably took 1-2 minutes.