No Firebase App '[DEFAULT]' has been created - call Firebase.initializeApp() in Flutter and Firebase

Question

I am building a flutter App and I have integrated Firebase but I keep getting this error when I click on a button either to register, login or logout. I have seen other peop

Answer 1

You need to add await Firebase.initializeApp(); which is a Future. Do it inside the dart file that is running your Firebase function like below:

import 'package:firebase_core/firebase_core.dart';
...

Future main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(MaterialApp());
}