com.google.firebase.FirebaseException: An internal error has occurred. [ CONFIGURATION_NOT_FOUND ]
<p>Ok so I get the following exception. No idea why it is happening. I have followed the guides how to set up auth for google account. I tried to search the google but no success of any solution for this. I haved tried to search for the <code>CONFIGURATION_NOT_FOUND</code> but I could not find it in the firebase docs. I don't know what configuration he can't find. Exception is basically useless. Signing in trough firebase is going great until authenticating it with firebase:</p>

<pre><code>private void authenticateGoogleAccount(GoogleSignInAccount account) {
    AuthCredential credential = GoogleAuthProvider.getCredential(account.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener&lt;AuthResult&gt;() {
                @Override
                public void onComplete(@NonNull Task&lt;AuthResult&gt; task) {
                    if (!task.isSuccessful()) {
                        Log.w(TAG, "signInWithCredential", task.getException());
                        Toast.makeText(MainActivity.this, "Authentication failed.",
                                Toast.LENGTH_SHORT).show();
                    }
                    else {
                        Log.d(TAG, "signInWithCredential");
                    }
                }
            });
}
</code></pre>

<p>Google sign-in-method is enabled in the firebase console.
yes I have found a <a href="https://stackoverflow.com/questions/38200605/firebaseexception-an-internal-error-has-occured-configuration-not-found?rq=1">duplicate</a> of this answer but has 0 answers and one unanswered comment 5 months ago.</p>