MissingPluginException(No implementation found for method init on channel plugins.flutter.io/google_sign_in)

Question

Using Flutter's google sign_in

But seeing the following message when I use this statement to sign in a user

_googleSignIn.signIn();

E/flutter ( 6491): MissingPluginException(No implementation found for method init on channel plugins.flutter.io/google_sign_in)

I verified the following steps:

GoogleSignInPlugin.registerWith(registry.registrarFor("io.flutter.plugins.googlesignin.GoogleSignInPlugin")); // is present

GeneratedPluginRegistrant.registerWith(this); // in MainActivity.Java

Is this error frequently reported by users. Not sure how to proceed. I am doing what most of the docs say and yet it doesn't work.

Other weird behavior I see is, first time I run flutter run it gets stuck on await googleSignIn.SignIn().

Only after I do a hot reload (by typing "r"), I see the above error message of :

E/flutter (12326): MissingPluginException(No implementation found for method init on channel plugins.flutter.io/google_sign_in)

Question: Are there any alternatives to do basic auth on Flutter applications. I just need some kind of basic auth so that my server can know which user it is serving data to.

Answer 1

I have been smashing my head over this problem when I encountered it. Finally I realized what I was doing wrong. I had to do the following steps
1>Switch to the master branch
flutter channel master
2>flutter upgrade
3>flutter clean
4>And the most important part, check if you have the facebook plugin. If yes, either set it up completely(not tested) or remove it(works) as it messes with the google plugin