title: How to migrate flutter mobile app to flutter web
body: <p>I have a mobile app written with flutter and i would like to convert it into a flutter_web app (integrating flutter_web is not available yet).
  I'm currently having problems with packages.</p>
  
  <p>I have followed the instructions listed in this website <a href="https://www.codemitter.com/how-to-add-web-counterpart-in-an-existing-flutter-project/" rel="nofollow noreferrer">https://www.codemitter.com/how-to-add-web-counterpart-in-an-existing-flutter-project/</a></p>
  
  <p>I get the following errors</p>
  
  <pre><code>webdev could not run for this project.
  You have a dependency on `cached_network_image` which is not supported for flutter_web tech preview. See https://flutter.dev/web for more details.
  You have a dependency on `cloud_firestore` which is not supported for flutter_web tech preview. See https://flutter.dev/web for more details.
  You have a dependency on `cupertino_icons` which is not supported for flutter_web tech preview. See https://flutter.dev/web for more details.
  You have a dependency on `firebase_core` which is not supported for flutter_web tech preview. See https://flutter.dev/web for more details.
  You have a dependency on `flutter` which is not supported for flutter_web tech preview. See https://flutter.dev/web for more details.
  You have a dependency on `path_provider` which is not supported for flutter_web tech preview. See https://flutter.dev/web for more details.
  You have a dependency on `sqflite` which is not supported for flutter_web tech preview. See https://flutter.dev/web for more details.
  pub finished with exit code 78
  </code></pre>
  
  <p>are the flutter_web versions for the following plugins?
  how would one manually/automatically change such a plugin to be supported on flutter_web?</p>