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

1. Add to pubspec.yaml

   firebase_core :
   

2. add to main.dart

   import 'package:firebase_core/firebase_core.dart';
   
   void main() async {
      WidgetsFlutterBinding.ensureInitialized();
      await Firebase.initializeApp();
      runApp(MyApp());
   }