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Error: Not found: ‘dart:html

Check your project structure: Ensure that you are working on a Dart web project or package. Dart web projects typically have an ‘web’ directory where you place your web-specific code, and an ‘index.html’ file as the entry point.

Update your project dependencies: Make sure that you have the necessary dependencies specified in your ‘pubspec.yaml’ file. You should include ‘dart:html’ in the dependencies section if your project requires it.

dependencies:
  # Other dependencies
  dart:html: ^2.10.0 # Use the appropriate version

Ensure you are using the correct entry point: In web applications, Dart code is typically compiled to JavaScript and executed in the browser. Ensure that your Dart code is being loaded in the HTML file using a script tag and that you are using the correct entry point Dart file.

<script defer src="main.dart.js"></script>

Run the project with ‘webdev’: If you are using the ‘webdev’ tool for Dart web development, make sure to use it to serve your application. You can start a development server using the following command:

webdev serve

Check your IDE and build configuration: If you are using an integrated development environment (IDE) like Visual Studio Code or IntelliJ IDEA, ensure that your IDE is correctly configured for Dart web development and that your build configurations are set up properly.

flutter clean

flutter pub get

flutter run

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