I am trying to integrate google app engine cloud endpoints API with android.
I have followed this links for the same:
unable to connect to my google end
Problem resolved: Was using wrong SHA1 to create android-client-id. This link helped me to identify my error:
"Google Endpoints - Android GoogleAuthIOException Tic Tac Toe - Removed clientIds"
Note: debug.keystore file can be found in c:\Users\ .android\