Comment on Google I/O 2013 Session Overview: From Nothing to Nirvana in Minutes: Cloud Backend for your Android Application – Building Geek Serendipity by Krasimir

I download Android Client from link above and run on real device and I get this Exception :

java.lang.IllegalStateException: The meta-data tag in your app’s AndroidManifest.xml does not have the right value. Expected 4030500 but found 13. You must have the following declaration within the element:

and I replace it with “4030500″ and run it again.

Guest Book start it but display that ERROR :

12-18 20:37:06.567: I/CloudBackend(1801): com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAuthIOException

and I cannot write a message in EditText in Guest Book.