title: I have a problem running the Flutter project
body: <p>hi have this error when I tryng to run my Flutter application <a href="https://i.stack.imgur.com/WaXIh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WaXIh.png" alt="error running" /></a>
  I'm beginner using Flutter, thank to your help.</p>
  <p>There are my dependencies in the YAML file.</p>
  <pre><code>flutter:
  sdk: flutter
  cupertino_icons: ^1.0.0
  generic_bloc_provider: ^1.0.8
  firebase_auth:
  google_sign_in:
  firebase_storage: ^2.1.0
  cloud_firestore: ^0.9.13
  image_picker: ^0.5.4+3
  cached_network_image: ^0.8.0
  </code></pre>