\'This App Is Not Authorized to Use Firebase Authentication\': How to Solve the Error After an Android Studio Upgrade?

"This App Is Not Authorized to Use Firebase Authentication" Error in Firebase Console

Problem:

Firebase Authentication was functioning without issues. However, after an Android Studio upgrade, the debug build began to fail, displaying the following error message:

D/PhoneAuthActivity( 7392): signInWithCredential:failure:com.google.firebase.auth.FirebaseAuthException: This app is not authorized to use Firebase Authentication. Please verify that the correct package name and SHA-1 are configured in the Firebase Console. [ App validation failed ].

This error occurred despite not making any changes to the code after a successful login.

Solution:

Updated (May 12th, 2022):

1. Obtain the SHA-1 and SHA-256 certificate fingerprints from the Play Store Console:

Play store Console > Your project > Release > Setup > App integrity

[Image: SHA-1 and SHA-256 fingerprints from Play Store Console]

2. Add both SHA-1 and SHA-256 fingerprints to your Firebase app:

Firebase Console > Your project > Settings of the app > Add Fingerprint

[Image: Fingerprints added to be in Firebase console]

Additional Considerations:

1. Include the local SHA-1 and SHA-256 values. Use the command ./gradlew signingReport to get them. For more information, refer to this document.
2. Phone OTP verification via emulator won't work because it lacks a SIM. Install the app on a mobile device with a SIM.
3. Verify that the "Enable app verification step" is correctly configured and that Android Device Verification is enabled.
4. Ensure the correct project is selected from the drop-down menu when enabling Android Device Verification.
5. Both SHA-1 and SHA-256 fingerprints must be registered in the Firebase project.
6. Use the most recent version of the google-services.json file after making all the changes.

The above is the detailed content of \'This App Is Not Authorized to Use Firebase Authentication\': How to Solve the Error After an Android Studio Upgrade?. For more information, please follow other related articles on the PHP Chinese website!