This doesn't work!

[hardyt]

Please update your code Google. From a new import, adding the appropriate client ID, an exception occurs:

Exception checking OAuth2 authentication.
com.google.android.gms.auth.GoogleAuthException: Unknown
at com.google.android.gms.auth.GoogleAuthUtil.getToken(Unknown Source)
at com.google.android.gms.auth.GoogleAuthUtil.getToken(Unknown Source)
at com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential.getToken(GoogleAccountCredential.java:255)
at com.google.devrel.samples.helloendpoints.MainActivity$AuthorizationCheckTask.doInBackground(MainActivity.java:441)
at com.google.devrel.samples.helloendpoints.MainActivity$AuthorizationCheckTask.doInBackground(MainActivity.java:410)