11
votes

The line where is going to crash:

GoogleSignInAccount googleUser = await _googleSignIn.signIn();

What have I tried:

  1. I've generated my SH1 key with this command keytool -list -v \ -alias androiddebugkey -keystore ~/.android/debug.keystore
  2. Adding SH1 encryption into console.firebase.google.com
  3. Re-downloading the google-service.json
  4. Copying the debug.keystore from .android to MyProject/android
  5. Run in debug and release
  6. Adding into android/build.gradle those lines:

    • classpath 'com.android.tools.build:gradle:3.2.1'
    • classpath 'com.google.gms:google-services:4.2.0'
  7. Adding into android/app/build.gradle this lines:

    • implementation 'com.google.firebase:firebase-core:16.0.9' under dependencies
    • apply plugin: 'com.google.gms.google-services' on the end of the file.
  8. Creating a file named release-signing.properties under my project folder with those lines in it.
    • storeFile=debug.keystore
    • keyAlias=androiddebugkey
    • storePassword=android
    • keyPassword=android

Also, I've searched in ALL StackOverflow question that I could found for this question, and none of them was useful for me.

My pubspec.yaml:

firebase_core: ^0.4.0+1
firebase_analytics: ^3.0.1

cloud_firestore: ^0.11.0+2

firebase_auth: ^0.11.1
google_sign_in: ^4.0.1+3

rxdart: ^0.22.0

Auth class:

class AuthService {
  final GoogleSignIn _googleSignIn = GoogleSignIn();
  final FirebaseAuth _auth = FirebaseAuth.instance;
  final Firestore _db = Firestore.instance;

  Observable<FirebaseUser> user;
  Observable<Map<String, dynamic>> profile;
  PublishSubject loading = PublishSubject();

  AuthService() {
    user = Observable(_auth.onAuthStateChanged);
    profile = user.switchMap((FirebaseUser user) {
      if (user != null) {
        return _db
            .collection('user')
            .document(user.uid)
            .snapshots()
            .map((snap) => snap.data);
      } else {
        return Observable.just({});
      }
    });
  }

  Future<FirebaseUser> googleSignIn() async {
    loading.add(true);
    GoogleSignInAccount googleUser = await _googleSignIn.signIn();
    GoogleSignInAuthentication googleAuth = await googleUser.authentication;
    // FirebaseUser user = await _auth.signInWithGoogle(
        // accessToken: googleAuth.accessToken, idToken: googleAuth.idToken);
    final AuthCredential credential = GoogleAuthProvider.getCredential(
      accessToken: googleAuth.accessToken,
      idToken: googleAuth.idToken,
    );
    FirebaseUser user = await _auth.signInWithCredential(credential);
    updateUserData(user);
    print("Sign in" + user.displayName);

    loading.add(false);

    return user;
  }
}

Main class:

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  AuthService authService = AuthService();

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blueGrey,
      ),
      home: Scaffold(
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              MaterialButton(
                child: Text("Log in with Google"),
                color: Colors.blueGrey,
                textColor: Colors.deepOrange,
                onPressed: () => authService.googleSignIn(),
              ),
              MaterialButton(
                child: Text("LogOut"),
                color: Colors.redAccent,
                textColor: Colors.purple,
                onPressed: () => authService.signOut(),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

Now if any of you could point me in the right direction I would be very grateful.

Here are some stackoverflow links that I've tried already:

  1. Google sign in doesn't work after release of flutter app
  2. Flutter and google_sign_in plugin: PlatformException(sign_in_failed, com.google.android.gms.common.api.ApiException: 10: , null)
  3. Google Sign In error 12500

I didn't have luck with any of them, please let me know what do you think and how can I fix it.

9
When exactly do you encounter this error? - ThinkDigital
After I'm pressing the "Log in with Google" button I will open a pop-up where I need to select my google account. I will receive this error right after I will press on my google account. - Mircea
I've added on the question the line where is going to crash. - Mircea
Have you checked the logcat for a more detailed error message? Since it's a platform exception, it's failing in the platform side, so you'll sometimes find error messages in the android or iOS logs that you won't find in flutter - ThinkDigital

9 Answers

21
votes

The OP, @Mircea, specifically mentioned error 12500. This is how I overcame that error:

I have spent the last few days running into the same problem. I refactored my code dozens of times, added break points, reset the SHA-1, SHA-256 and did just about every other 'code' based solution I could find. I was constantly running into the error:

E/flutter (11935): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: PlatformException(sign_in_failed, com.google.android.gms.common.api.ApiException: 12500: , null)

I was losing my mind so I decided to start with fresh eyes and move slowly through solutions one more time. I noticed an obscure post nestled deep in a thread that mentioned something about having a support email. It was not until I added a said support email that things "magically" started working. I've attached a screenshot below of the Firebase settings for my project.

enter image description here

9
votes

You need to complete "Oauth consent screen"

I went to this page (https://console.developers.google.com/apis/credentials) Do not forget to select your project on the list (top left). Then go on "Oauth consent screen"

I filled the application logo and the application homepage link and aplication privacy policy link (with the project.firebaseapp.com) and saved.

enter image description here

Now it's working, I can login.

This must be explained in the documentation. People are going to be crazy and to don't try flutter with this kind of lack of documentation.

6
votes

In my case, I have not enabled Google Sign In method.

enter image description here

1
votes

I also tried almost all answer that I can search from internet.So I decide to tried ios side then it still give me error "403 restricted client".Then I determine it's server side issue .Finally I found that Forgot to set support e-mail address in Google Developers Console > API and service > certificate > user consent screen link and this option also in your Firebase project setting .After set up everything should work.Hope this will help you.

1
votes

After following all the steps mentioned in the documentation, even I was facing the same issue. One thing worked for me is adding the support email in the setting page of firebase console

1
votes

Go to the API & Servcies page of your google account and make sure to select the project of your interest in the top left corner as shown below

enter image description here

Make sure you have the support email ID entered in the above

And all the below fields must have a value

enter image description here

Try logging in now, it will work!

0
votes

I ran exatly into the same issue, what solved the issue for me was to add a SHA-256 fingerprint additionally to the SHA-1

as mentioned here -> Flutter and google_sign_in plugin: PlatformException(sign_in_failed, com.google.android.gms.common.api.ApiException: 10: , null)

Hope that works for you too!

0
votes

had the same issue was using visual studio when I changed to android studio it worked. I guess because I am signed into firebase with android studio i wander if i can do the same with VS oh well hopefully this helps someone

0
votes

I faced the same issue, I resolved it by adding the debug / release SHA1 and SHA256 certificate fingerprint using Keytool

Release

keytool -exportcert -list -v -alias <your-key-name> -keystore <path-to-production-keystore>

Debug

keytool -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore

More details here: https://developers.google.com/android/guides/client-auth