Add the Auth plugin, along with any other plugins you may have added as described in the **Prerequisites** section. To complete initialization call `Amplify.configure()`.

Your code should look like this:

```dart
import 'package:amplify_flutter/amplify_flutter.dart';
import 'package:amplify_auth_cognito/amplify_auth_cognito.dart';
import 'package:flutter/material.dart';

import 'amplifyconfiguration.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  void initState() {
    super.initState();
    _configureAmplify();
  }

  Future<void> _configureAmplify() async {
    try {
      final auth = AmplifyAuthCognito();
      await Amplify.addPlugin(auth);

      // call Amplify.configure to use the initialized categories in your app
      await Amplify.configure(amplifyconfig);
    } on Exception catch (e) {
      safePrint('An error occurred configuring Amplify: $e');
    }
  }

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: Scaffold(
        body: SizedBox(),
      ),
    );
  }
}
```