Flutter unresolved class ‘{applicationname}’

When encountering the error “unresolved class ‘{applicationname}'”, it means that the class with the specified name cannot be found or imported in your Flutter application.

To resolve this issue, you need to make sure that you have correctly imported the necessary packages and libraries in your application. Here are a few steps you can follow:

1. Check package dependencies: Ensure that you have added the required dependencies in your pubspec.yaml file. These dependencies are typically mentioned in the documentation or example code of the package you are using.
2. Run Flutter pub get: After adding or modifying the dependencies in your pubspec.yaml file, run the following command in your terminal to fetch and sync the required packages: flutter pub get.
3. Import the required classes: Make sure you have imported the necessary classes in your Dart files. If you are using an IDE, it may help you automatically import the required classes by showing suggestions or using shortcuts.

Here’s an example:

    
import 'package:flutter/material.dart';
import 'package:flutter/cupertino.dart';

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('My App'),
        ),
        body: Center(
          child: Text('Hello, World!'),
        ),
      ),
    );
  }
}
    
  

In the above example, the required classes MaterialApp, Scaffold, AppBar, Text, etc., are imported from their respective packages (package:flutter/material.dart and package:flutter/cupertino.dart).

Make sure to adjust the package imports and class names according to your specific scenario in order to resolve the “unresolved class” error in your Flutter application.