Flutter Firebase Auth Error .createUserWithEmailAndPassword: getGoogleApiForMethod() returned Gms: com.google.firebase.auth.api.internal.zzao@fb1556c

user_9482067 0
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Preamble

This has been a struggle for a good while now and nothing seems to be working, I have seen answers to similar questions here and here but the former was not in flutter and the latter was posted before the recent changes to firebase_auth and I guess most importantly the proposed solutions have not worked.

The Issue

The issue concerns a very very simple initial setup of firebase authentication within flutter. I have set up my firebase project exactly as it suggests here and used this and this to set up firebase_auth.

The code that is causing the problem is as follows:

void _registerTestUser() async {
  try {
    UserCredential userCredential = await FirebaseAuth.instance
        .createUserWithEmailAndPassword(
            email: "barry.allen@example.com",
            password: "SuperSecretPassword!");
    print(userCredential.user.email);
  } on FirebaseAuthException catch (e) {
    if (e.code == 'weak-password') {
      print('The password provided is too weak.');
    } else if (e.code == 'email-already-in-use') {
      print('The account already exists for that email.');
    }
  } catch (e) {
    print(e);
  }
}

When the code is run the error

I/BiChannelGoogleApi(19546): [FirebaseAuth: ] getGoogleApiForMethod() returned Gms: com.google.firebase.auth.api.internal.zzao@fb1556c

Is returned.

This answer seems to suggest that the error may well be irrelevant, i.e. the code may work anyway. I put a breakpoint on the line UserCredential userCredential = await FirebaseAuth.instance and stepped over, it continues to .createUserWithEmailAndPassword(, then once stepped over again goes back to the first line and the error is displayed. Stepping over any further breaks out of the function entirely, so the print(userCredential.user.email); line is never executed, which would suggest the code isn't working. Additionally the print(e); line in the catch is not what is outputting this error.

Other Info

Pubspec.yaml

dependencies:
  flutter:
    sdk: flutter
  firebase_core: ^0.5.3 #firebase core flutter sdk
  firebase_auth: ^0.18.4+1 #firebase authorisation

android/build.gradle

dependencies {
    classpath 'com.android.tools.build:gradle:3.5.0'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    classpath 'com.google.gms:google-services:4.3.4'  // Google Services plugin
}

android/app/build.gradle

apply plugin: 'com.google.gms.google-services'  // Google Services plugin

main.dart

import 'package:flutter/material.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_auth/firebase_auth.dart';

FirebaseAuth auth = FirebaseAuth.instance;

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  final Future<FirebaseApp> _initialization = Firebase.initializeApp();

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: FutureBuilder(
        // Initialize FlutterFire:
        future: _initialization,
        builder: (context, snapshot) {
          // Check for errors
          if (snapshot.hasError) {
            return Error();
          }

          // Once complete, show your application
          if (snapshot.connectionState == ConnectionState.done) {
            return MyHomePage();
          }

          // Otherwise, show something whilst waiting for initialization to complete
          return Loading();
        },
      ),
    );
  }
}

class Loading extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Text('Firebase is loading'),
      ),
    );
  }
}

class Error extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Text('There has been an error'),
      ),
    );
  }
}

class MyHomePage extends StatelessWidget {
  void _registerTestUser() async {
    try {
      UserCredential userCredential = await FirebaseAuth.instance
          .createUserWithEmailAndPassword(
              email: "barry.allen@example.com",
              password: "SuperSecretPassword!");
      print(userCredential.user.email);
    } on FirebaseAuthException catch (e) {
      if (e.code == 'weak-password') {
        print('The password provided is too weak.');
      } else if (e.code == 'email-already-in-use') {
        print('The account already exists for that email.');
      }
    } catch (e) {
      print(e);
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('FlutterFire Test')),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            RaisedButton(
              child: Text('Register a test user'),
              onPressed: () => _registerTestUser(),
              color: Colors.blue,
            ),
          ],
        ),
      ),
    );
  }
}

Also this error has appeared a few times, although this answer seems to imply it's got nothing to do with my issue and isn't indicative of a problem.

W/ConnectionTracker(19240): java.lang.IllegalArgumentException: Service not registered: lp@fb1556c W/ConnectionTracker(19240): at android.app.LoadedApk.forgetServiceDispatcher(LoadedApk.java:1729) W/ConnectionTracker(19240): at android.app.ContextImpl.unbindService(ContextImpl.java:1874) W/ConnectionTracker(19240): at android.content.ContextWrapper.unbindService(ContextWrapper.java:792) W/ConnectionTracker(19240): at ci.f(:com.google.android.gms.dynamite_measurementdynamite@204217100@20.42.17 (150700-0):1) W/ConnectionTracker(19240): at ci.d(:com.google.android.gms.dynamite_measurementdynamite@204217100@20.42.17 (150700-0):2) W/ConnectionTracker(19240): at lq.D(:com.google.android.gms.dynamite_measurementdynamite@204217100@20.42.17 (150700-0):10) W/ConnectionTracker(19240): at lc.a(:com.google.android.gms.dynamite_measurementdynamite@204217100@20.42.17 (150700-0):2) W/ConnectionTracker(19240): at ee.run(:com.google.android.gms.dynamite_measurementdynamite@204217100@20.42.17 (150700-0):3) W/ConnectionTracker(19240): at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:462) W/ConnectionTracker(19240): at java.util.concurrent.FutureTask.run(FutureTask.java:266) W/ConnectionTracker(19240): at ix.run(:com.google.android.gms.dynamite_measurementdynamite@204217100@20.42.17 (150700-0):6)

EDIT

Changing the line onPressed: () => _registerTestUser(), in main.dart to onPressed: () {_registerTestUser();} gives the same result but changes the error slightly, the zzao@fb1556c becomes zzao@ebc85e9.

firebase-authentication firebase flutter
4 Answers

First of as I can see you have not initialized firebase in main.dart file correctly.

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MyApp());
}

You missed one statement try again and if still you got problem let me know

user_145576690

Whilst not directly answering your question and being apparently at odds (though not very different to) with the FlutterFire sample code. Here is the code I use to create a user (Firebase_auth Type User) and I don't see your error:

User _user = (await _firebaseAuth.createUserWithEmailAndPassword(
              email: email,
              password: password,
            )).user;

I can then use methods such as await _user.sendEmailVerification(); and access its properties such as _user.email without issue.

Maybe try that instead of the credential.

PS. The issue : W/ConnectionTracker(19240): java.lang.IllegalArgumentException: Service not registered: you refer to is being tracked here and I don't believe it is related to your code: https://github.com/firebase/firebase-android-sdk/issues/1662#issue-638324848

It has several variations of exception code but they are all related.

Update I also believe that @amit kumar is almost correct, you are running FirebaseAuth auth = FirebaseAuth.instance; before Firebase.initializeApp();. You need to make sure your future completes before you instantiate FirebaseAuth, I believe. Probably makes my changed code above irrelevant.

user_103766040

Give this a try:

  void _registerTestUser() async {
    try {
      await FirebaseAuth.instance
          .createUserWithEmailAndPassword(
              email: "barry.allen@example.com",
              password: "SuperSecretPassword!")
          .then((userCredential) => print(userCredential.user.email));
    } on FirebaseAuthException catch (e) {
      if (e.code == 'weak-password') {
        print('The password provided is too weak.');
      } else if (e.code == 'email-already-in-use') {
        print('The account already exists for that email.');
      }
    } catch (e) {
      print(e);
    }
  }

Also consider using User instead of UserCredential:

  void _registerTestUser() async {
    try {
      final User user = (await FirebaseAuth.instance
              .createUserWithEmailAndPassword(
                  email: "barry.allen@example.com",
                  password: "SuperSecretPassword!"))
          .user;

      print(user.email);
    } on FirebaseAuthException catch (e) {
      if (e.code == 'weak-password') {
        print('The password provided is too weak.');
      } else if (e.code == 'email-already-in-use') {
        print('The account already exists for that email.');
      }
    } catch (e) {
      print(e);
    }
  }
user_44905680 
 final FirebaseAuth _auth = FirebaseAuth.instance;

        registerUser()async{
        _auth.createUserWithEmailAndPassword(
         email:"barry.allen@example.com",
         password: "SuperSecretPassword!",
        ).then((result){
User user = result.user;
}).catchError((e) {
          print(e);
        });
    }
user_124737920
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