Firebase Auth: Requests from this Android client application com.xxx are blocked

Question

I\'m implementing the standard tutorial for Firebase AuthUI in my android app. However, when testing I try to sign-in using Google sign-in from within the app and get the follow

Answer 1

I just faced the same problem today and fortunately solved the problem. I still don't have any idea why this was happening but here are the steps I had taken to solve :

1. Delete the already added SHA-1 signing-certificate fingerprint in the Firebase console settings.
2. Go to android studio and Sync Project with Gradle Files.
3. Add SHA-1 signing-certificate fingerprint again to the Firebase Console Settings.

Here is how you can add SHA-1 signing-certificate fingerprint to firebase : CLICK HERE