[📚] Firebase auth, Google Sign in and Dart initialization. GoogleService-Info.plist needed?

[hazzo]

I was trying to use firebase_auth and google_sign_in with a firebase app initialised in Dart, but when I try to sign in with google I get the following error:

[VERBOSE-2:ui_dart_state.cc(209)] Unhandled Exception: PlatformException(missing-config, GoogleService-Info.plist file not found, null, null)
#0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:607:7)
#1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:167:18)
<asynchronous suspension>
#2      GoogleSignIn._callMethod (package:google_sign_in/google_sign_in.dart:242:5)
<asynchronous suspension>
#3      GoogleSignIn.signIn.isCanceled (package:google_sign_in/google_sign_in.dart)
<asynchronous suspension>

Really I have to put GoogleService-Info.plist into my project, even If I'm using Dart initialisation? If so, whats the whole purpose of dart initialisation if some plugins still requiere to have the GoogleServices file? Shouldn't this be stated in the documentation?

I was really exited about Dart initialisation but since I tried it I encountered no other thing than problems. It was supposed to ease firebase configuration not make it more difficult.

[Flucadetena]

Facing the same problem, out of the bloom. Before it was working fine. I've updated everything and doesn't help.

[pr-Mais]

google_sign_in doesn't support Dart-only initialization yet, so we still need the manual installation if the app uses Google sign in.

[hazzo]

Yet? Sorry to be harsh but it should be stated in same place in the documentation when tips like the following are in the oficial documentation:

There is nothing of safe and backwards compatible on this kind of statements.

Just to be clear, I loved Flutter, FlutterFire ecosystem and I'm not complaining that google_sign_in is not working with Dart initialisation. It's just that the documentation tells the developer that when initialising Firebase with Dart everything will be the same as manual initialisation and it's not true (and I'm not mentioning that fcm is not working on iOS with Dart initialisation).

[pr-Mais]

Thanks for raising the issue, a PR is in-progress (#7745) to add notes on all unsupported plugins.

[hazzo]

Thanks!