Google sign-in error with Firebase Auth UI after upgrade

Question

I was using an older version of firebase auth ui successfully but after upgrading to the latest releases I receive the following error while trying to login with Google:

E/AuthUI: A sign-in error occurred.
com.firebase.ui.auth.FirebaseUiException: Code: 10, message: 10: 
    at com.firebase.ui.auth.data.remote.GoogleSignInHandler.onActivityResult(GoogleSignInHandler.java:106)
    at com.firebase.ui.auth.ui.idp.AuthMethodPickerActivity.onActivityResult(AuthMethodPickerActivity.java:225)
    at android.app.Activity.dispatchActivityResult(Activity.java:7235)
    at android.app.ActivityThread.deliverResults(ActivityThread.java:4320)
    at android.app.ActivityThread.handleSendResult(ActivityThread.java:4367)
    at android.app.ActivityThread.-wrap19(Unknown Source:0)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1649)
    at android.os.Handler.dispatchMessage(Handler.java:105)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:6541)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

Facebook and email sign in is fine.

I am using these dependencies in my app gradle:

implementation 'com.google.android.gms:play-services-auth:15.0.1'
implementation 'com.firebaseui:firebase-ui-auth:4.0.0'
implementation 'com.google.firebase:firebase-auth:16.0.1'
implementation 'com.android.support:customtabs:27.1.1'
implementation 'com.android.support:cardview-v7:27.1.1'
implementation 'com.facebook.android:facebook-login:4.32.0'
implementation 'com.google.firebase:firebase-config:16.0.0'
implementation 'com.google.firebase:firebase-core:16.0.0'
implementation 'com.google.firebase:firebase-database:16.0.1'

And the following in my project level gradle:

classpath 'com.google.gms:google-services:4.0.1'

Login activity:

public class ActivityLoginView extends ActivityBase {

// Misc
public static final int RC_SIGN_IN = 100;
public static final String TAG = "ActivityLoginView";

public ActivityLoginViewModel activityLoginViewModel;

private static final String PRIVACY_POLICY_URL = "https://www.editedout.com/pages/privacy";

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    activityLoginViewModel = new ActivityLoginViewModel(this);

    if (!activityLoginViewModel.isGooglePlayServicesAvailable()) {
        AlertDialog alertDialog = new AlertDialog.Builder(this).create();
        alertDialog.setTitle("No Google Play Services");
        alertDialog.setMessage("This app requires Google Play Services to be installed and enabled");
        alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, "OK",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                        finish();
                        System.exit(0);
                    }
                });
        alertDialog.show();

    } else {

        FirebaseUser currentUser = FirebaseAuth.getInstance().getCurrentUser();
        // See if user is logged in already
        if (currentUser != null) {

            // User already signed in
            if (!BuildConfig.DEBUG) {
                Crashlytics.setUserIdentifier(currentUser.getUid());
                Crashlytics.setUserName(currentUser.getDisplayName());
                Crashlytics.setUserEmail(currentUser.getEmail());
            }

            activityLoginViewModel.saveUserToFirebase();

        } else {

            startActivityForResult(
                    AuthUI.getInstance().createSignInIntentBuilder()
                            .setTheme(R.style.LoginTheme)
                            .setLogo(R.drawable.loginlogo)
                            .setAvailableProviders(getSelectedProviders())
                            .setPrivacyPolicyUrl(PRIVACY_POLICY_URL)
                            .setIsSmartLockEnabled(!BuildConfig.DEBUG)
                            .build(),
                    RC_SIGN_IN);

        }
    }
}

public void startMain() {

    if (SPManager.getBoolean(this, SPManager.kOnBoardShown)) {

        Intent intent = new Intent(this, ActivityHomePage.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        startActivity(intent);
        finish();

    } else {

        startActivity(ActivityOnBoard.newIntent(this));

    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == RC_SIGN_IN) {

        handleSignInResponse(resultCode, data);

    }
}

private void handleSignInResponse(int resultCode, Intent data) {
    IdpResponse response = IdpResponse.fromResultIntent(data);

    // Successfully signed in
    if (resultCode == RESULT_OK) {

        activityLoginViewModel.saveUserToFirebase();

    } else {
        // Sign in failed
        if (response == null) {
            // User pressed back button
            showSnackbar(R.string.sign_in_cancelled);
            return;
        }

        if (response.getError().getErrorCode() == ErrorCodes.NO_NETWORK) {
            showSnackbar(R.string.no_internet_connection);
            return;
        }

        showSnackbar(R.string.unknown_error);
        Log.e(TAG, "Sign-in error: ", response.getError());
    }
}

private List<AuthUI.IdpConfig> getSelectedProviders() {

    List<AuthUI.IdpConfig> selectedProviders = new ArrayList<>();

    selectedProviders.add(new AuthUI.IdpConfig.GoogleBuilder()
            .build());

    selectedProviders.add(new AuthUI.IdpConfig.FacebookBuilder()
            .build());

    selectedProviders.add(new AuthUI.IdpConfig.EmailBuilder()
            .setRequireName(true)
            .setAllowNewAccounts(true)
            .build());

    //selectedProviders
    //        .add(new AuthUI.IdpConfig.PhoneBuilder().build());

    return selectedProviders;

}

public void showSnackbar(@StringRes int errorMessageRes) {

    View parentLayout = findViewById(android.R.id.content);
    Snackbar.make(parentLayout, errorMessageRes, Snackbar.LENGTH_LONG).show();

}

@Override
public void onBackPressed() {

    finishAffinity();

}

Answer 1

Fixed it. I forgot to add my new debug SHA1 to Firebase.

Answer 2

Step1) generate SH1 from your android studio

Click on Gradle -> signingReport - > In the Run console you will able to see SH1 value

Step 2) add the SH1 to firebase console. (https://console.firebase.google.com)

Goto -> Your project name -> Settings -> General -> Add fingerprints

add SH1 what we generated in step 1 and save