This is my flutter code

import 'package:flutter/material.dart';
import 'firebase_options.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'login.dart';
import 'home.dart';

Future main() async{
  WidgetsFlutterBinding.ensureInitialized();
  Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
  runApp(const MainApp());
}

class MainApp extends StatefulWidget {
  const MainApp({Key? key}) : super(key: key);

  @override
  State<MainApp> createState() => _MainAppState();
}

class _MainAppState extends State<MainApp> {
  String ime='';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: StreamBuilder<User?>(
          stream: FirebaseAuth.instance.authStateChanges(),
          builder: (context, snapshot){
            if (snapshot.hasData){
              return const HomePage();
            } else{
              return const LoginPage();
            }
          },
        )
      ),
    );
  }
}

the error from the code usually appears if you don’t have Firebase.initializeApp(), but i have it
i have also have firebase_core in my pubspec yaml

i have tried making the code only check if the user has an account after initializing using FutureBuilder

i have used this type of code a thousand times and only now does it show this bug

i have even watched begginer tutorials to see if i missed something, but everything seems in orded