Google sign in failed com.google.android.gms.common.api.ApiException: 10:

So I'm Stuck on this frustrating issue. I am quite new to Google Auth on Firebase but I done everything the firebase docs instructed in how to integrate the Google SignIn Auth, yet I'm still receiving this weird Error in the console consisted of two parts:

12-03 11:07:40.090 2574-3478/com.google.android.gms E/TokenRequestor: You have wrong OAuth2 related configurations, please check. Detailed error: UNREGISTERED_ON_API_CONSOLE

and also

Google sign in failed com.google.android.gms.common.api.ApiException: 10:

Before Anyone attempts to point out similar questions that have previously been asked on stack overflow, Here's what I have done till now after seen all the available solutions and yet non has resolved the error

I have my SHA1 fingerprint for my project
I have my OAuth 2.0 client ID, both, the android client id and the web client and in the requestIdToken() I have put the web client id.
I did not publish my project's APK on google play store. which means I did not accidentally generate another SHA1 fingerprint.
I have followed step by step the Google Sign in Auth firebase docs.

here is my code snippet:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_signup);
    ButterKnife.bind(this);

    String webClientId = getString(R.string.web_client_id);


    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestEmail()
            .requestIdToken(webClientId)
            .build();

    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .enableAutoManage(this /* FragmentActivity */, this /* OnConnectionFailedListener */)
            .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
            .build();

    mGoogleSignInClient = GoogleSignIn.getClient(this, gso);


    GoogleSignInAccount account = GoogleSignIn.getLastSignedInAccount(this);


    googleLoginBtn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent signInIntent = mGoogleSignInClient.getSignInIntent();
            startActivityForResult(signInIntent, RC_SIGN_IN);
        }
    });

}



@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    // Result returned from launching the Intent from GoogleSignInClient.getSignInIntent(...);
    if (requestCode == RC_SIGN_IN) {
        // The Task returned from this call is always completed, no need to attach
        // a listener.
        Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);

        try{

            GoogleSignInAccount account = task.getResult(ApiException.class);
            firebaseAuthWithGoogle(account);

        } catch (ApiException e) {
            // Google Sign In failed, update UI appropriately
            Log.w(TAG, "Google sign in failed", e);
            // [START_EXCLUDE]
            Toast.makeText(this, "Gooogle Auth failed", Toast.LENGTH_LONG);
            // [END_EXCLUDE]
        }

    }
}



private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGoogle:" + acct.getId());
    // [START_EXCLUDE silent]
    //showProgressDialog();
    // [END_EXCLUDE]

    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (task.isSuccessful()) {
                        // Sign in success, update UI with the signed-in user's information
                        Log.d(TAG, "signInWithCredential:success");
                        FirebaseUser user = mAuth.getCurrentUser();
                        Toast.makeText(LoginActivity.this, "Successful Auth", Toast.LENGTH_LONG).show();
                    } else {
                        // If sign in fails, display a message to the user.
                        Log.w(TAG, "signInWithCredential:failure", task.getException());
                        Toast.makeText(LoginActivity.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                        //updateUI(null);
                    }

                    // [START_EXCLUDE]
                    //hideProgressDialog();
                    // [END_EXCLUDE]
                }
            });
}

Solution 1:

Basically problem is in the SHA1 key put on console please regenerate it and put again properly same project.

1)As the answers, make sure that your actual signed Android apk has the same SHA1 fingerprint as what you specified in the console of your Firebase project's Android integration section (the page where you can download the google-services.json)

For more info, see: Generate SHA-1 for Flutter app

2)On top of that go to the Settings of your firebase project (gear icon right to the Overview at the top-left area. Then switch to Account Linking tab. On that tab link the Google Play to your project.

EDIT: Account Linking tab doesn't exist any more, instead :

Sign in to Firebase.
Click the Settings icon, then select Project settings.
Click the Integrations tab.
On the Google Play card, click Link.

enter image description here

Solution 2:

When using App Signing by Google Play and Firebase, you need to add the SHA-1 fingerprint of the App signing certificate (found on Google Play Console/ Release Management/ App signing certificate) to the Firebase Console/ Settings/ SHA certificate fingerprints

Updated location for the SHAs: Google Play Console > Release > Setup > App integrity

Solution 3:

In My case, There is no problem with SHA-1

I have done GoogleAuth using Firebase.

I forgot to add implementation 'com.firebaseui:firebase-ui-auth:4.3.1'

And I put my own key instead of R.string.default_web_client_id, So that was the problem. I added above dependency and replace R.string.default_web_client_id with my own key.

GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestIdToken(getString(R.string.default_web_client_id))
                .requestEmail()
                .build();

UPDATE : 18-Dec-2020

We can also use without requestIdToken like below. For this you must have to add your SHA1 to google console.

GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestEmail()
                .build();

Solution 4:

I was facing the same issue, After checking around for a solution, from regenerating the finger print to linking the app on firebase to the Google play console and publishing the signed apk, the issue was actually because I was using the release SHA-1 on the firebase console.

If you are still on debug mode, use the debug.keystore SHA1
Only use the release SHA1 if you are on production mode

https://developer.android.com/studio/publish/app-signing.html

Solution 5:

My solution was a little different,

After hours of trying various things. I found my solution:

Using the steps listed here: https://stackoverflow.com/a/34223470/10575896

Open Android Studio
Open your Project
Click on Gradle (From Right Side Panel, you will see Gradle Bar)
Click on Refresh (Click on Refresh from Gradle Bar, you will see List Gradle scripts of your Project)
Click on Your Project (Your Project Name form List (root))
Click on Tasks
Click on Android
Double Click on signingReport (You will get SHA1 and MD5 in Run Bar(Sometimes it will be in Gradle Console))

The console will print out the SHA keys for both debug and release. I had added the debug keys to firebase sometime in the past, but I had not added the release keys.

I simply added the SHA1 and SHA256 keys to firebase, and I was good to go.