Firebase Android: An internal error has occurred. [ OPERATION_NOT_ALLOWED ]

Question

Signing in via Google in my application gives this error:

An internal error has occurred. [ OPERATION_NOT_ALLOWED ]

I have enabled Google in the Firebase console. Permissions are correct, and I can't seem to find the problem. I'm sure this has nothing to do with my code, but if it does tell me.

SignInactivity:

@Override
public void onClick(View v) {
    switch (v.getId()) {
        case R.id.sign_in_button:
            signIn();
            break;
    }
}

private void signIn() {
    Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
    startActivityForResult(signInIntent, RC_SIGN_IN);
}

@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
    // An unresolvable error has occurred and Google APIs (including Sign-In) will not
    // be available.
    Log.d(TAG, "onConnectionFailed:" + connectionResult);
    Toast.makeText(this, "Google Play Services error.", Toast.LENGTH_SHORT).show();
}

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

    // Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
    if (requestCode == RC_SIGN_IN) {
        GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
        if (result.isSuccess()) {
            // Google Sign In was successful, authenticate with Firebase
            GoogleSignInAccount account = result.getSignInAccount();
            firebaseAuthWithGoogle(account);
        } else {
            // Google Sign In failed
            Log.e(TAG, "Google Sign In failed.");
        }
    }
}

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d(TAG, "firebaseAuthWithGooogle:" + acct.getId());
    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mFirebaseAuth.signInWithCredential(credential).addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {

       @Override
       public void onComplete(@NonNull Task<AuthResult> task) {
           Log.d(TAG, "signInWithCredential:onComplete:" + task.isSuccessful());

           // If sign in fails, display a message to the user. If sign in succeeds
           // the auth state listener will be notified and logic to handle the
           // signed in user can be handled in the listener.
           if (!task.isSuccessful()) {
               Log.w(TAG, "signInWithCredential", task.getException());
               Toast.makeText(SignInActivity.this, "Authentication failed: " + task.getException(),
                       Toast.LENGTH_SHORT).show();
           } else {
               startActivity(new Intent(SignInActivity.this, MainActivity.class));
               finish();
           }
       }
    );
}

@jesses.co.tt code isn't needed, but I'll add my SignInActivity — Ali Bdeir
– Ali Bdeir, Commented Jun 14, 2016 at 16:17
If you are "sure this has nothing to do with [your] code", how do you expect us to help you? We can't exactly ask Google to fix something on their servers -- all we can do is deal with your code. — hichris123
– hichris123, Commented Jun 14, 2016 at 16:29
@hichris123 nah man, this is obviously a server error with Firebase, I need to enable or disable something. Did you even look at the error message? — Ali Bdeir
– Ali Bdeir, Commented Jun 14, 2016 at 19:45
@hichris123 Well, I gave you code anyways. Firebase has been tiring me out lately - it has so many bugs. Defiantly going to reconsider using it — Ali Bdeir
– Ali Bdeir, Commented Jun 14, 2016 at 19:48

Peter Mortensen · Accepted Answer · 2016-07-10 15:01:20Z

40

I had the same problem. I got the solution in the forum post [Google Auth] com.google.firebase.FirebaseException: An internal error has occurred.

This happened to me when I did not have the authentication method enabled in the console Firebase. When I enabled Google authentication, I got the same exception, just without [OPERATION_NOT_ALLOWED].

edited Jul 10, 2016 at 15:01

Peter Mortensen

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answered Jun 17, 2016 at 14:04

Ismael Junior

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3 Comments

Ali Bdeir Over a year ago

Although I double-checked, this solution was right for me. Although I did try it before. I'm guessing you copied and pasted this message from the google groups heh?

Roberto Over a year ago

Took me a while to see it :)

Ali Bdeir Over a year ago

33 upvotes for such a small question. Proves how small answers can have huge impact :)

Dev · Accepted Answer · 2016-10-26 08:10:51Z

15

Go to https://console.firebase.google.com/
Select your project.
Click on Authentication from menu option
Click on SIGN-IN-METHOD
Click on Google and enable it.

Than it works fine :)

answered Oct 26, 2016 at 8:10

Dev

2754 silver badges9 bronze badges

2 Comments

Elvis Lima Over a year ago

Obrigado cara! como que esqueceram de colocar isso na documentação? Se colocaram, ficou muito oculto. Thanks man! How come they forgot to put this in the documentation? If they did, it was very hidden.

JCarlosR Over a year ago

It is currently enabled :/

ViramP · Accepted Answer · 2017-04-12 08:40:40Z

2

If you are signup with email and password then follow below steps.

Go to https://console.firebase.google.com/
Select your project.
Click on Authentication from menu option(Right-side menu)
Click on SIGN-IN-METHOD
Click on Email/Password and enable it.
Click on SAVE.

answered Apr 12, 2017 at 8:40

ViramP

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Comments

Ashish M · Accepted Answer · 2017-02-13 10:09:44Z

1

Enable the SIGN-IN-METHOD method on firebase console which you are going to use or you are using in your APP.

answered Feb 13, 2017 at 10:09

Ashish M

8338 silver badges13 bronze badges

Comments

Kaveesha Nethruwan · Accepted Answer · 2020-01-19 11:40:29Z

1

I got "Internal error has occurred" when run the project. Please make sure your emulator connect with internet. In my case my emulator didn't connect with internet. for that following these steps.(For Windows PC)

Go to the WiFi settings.
Change adapter options.
Right click WiFi and go to the properties.
Then go to the sharing tab.
Checked these two components and press OK.

Then in emulator, switch off WiFi and switch on again. It's worked for me.

edited Jan 19, 2020 at 11:40

answered Jan 19, 2020 at 7:55

Kaveesha Nethruwan

114 bronze badges

Comments

pinkfloyd · Accepted Answer · 2017-08-28 02:45:01Z

0

finally I found the solution which worked for me. The fact is that even when you have setup successfully the email+password auth method you need to create a mobile app(in my case) and associate it with your project. After that FireBase will work as expected.

answered Aug 28, 2017 at 2:45

pinkfloyd

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Comments

Amit Walke · Accepted Answer · 2018-04-06 19:20:51Z

0

Go to Google "https://console.developers.google.com/apis/library/" to your project and enable Identity Toolkit API

answered Apr 6, 2018 at 19:20

Amit Walke

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