# Adding router to Material App

So the last step is adding an instance of the router class we just generated to the material app to manage its routes.

```dart
 MaterialApp(
        title: 'Tech camp Flutter',
        debugShowCheckedModeBanner: false,
        //TODO: Add this line
        builder: ExtendedNavigator.builder(router: Router()),
 ),
```

While doing this step flutter may cause an error that the router class is imported from two libraries. So in order to overcome that change your imports like this.

```dart
import 'package:flutter/material.dart' hide Router;
```


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