Flutter. Firebase not initializing on android and web together

This is working for web but not for android. And when i comment out options:FirebaseOptions() it works for android and not for web.

Code: which works for web

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp(
      options: FirebaseOptions(
    apiKey: "---",
    appId: "---",
    messagingSenderId: "---",
    projectId: "---",
  ));
  runApp(const MyApp());
}

Error For android: a firebase app named "[default]" already exists

Code: which works for android

WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
  runApp(const MyApp());
}

Error for web: FirebaseOptions cannot be null when creating the default app

  if (kIsWeb) {
    await Firebase.initializeApp(
        options: FirebaseOptions(
      apiKey: "---",
      appId: "---",
      messagingSenderId: "---",
      projectId: "---",
    ));
  } else
    await Firebase.initializeApp();
}

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await initFireBase();
  runApp(const MyApp());
}```