Error 403 Restricted Client with Google Signin in Flutter

Question

I\'ve setup firebase_auth and google_signin about 6 times, but in my latest app I must have forgotten a step.

firebase_auth: ^0.11.1 google_sign_in: ^4.0.1+3

Answer 1

In my case I forgot to set support e-mail address in Google Developers Console > API and service > certificate > OAuth consent screen link and this option also in your Firebase project setting .After set up then everything is working.