title: Flutter dependency issue after upgrade
body: <p>After upgrading flutter to - Channel stable, v1.12.13+hotfix.5, the plugins <a href="https://pub.dev/packages/audio_service" rel="nofollow noreferrer">audio_service</a> and <a href="https://pub.dev/packages/story_view" rel="nofollow noreferrer">story_view</a> seems to have encountered a problem giving me this issue below </p>
  
  <blockquote>
    <p>Because app depends on <strong>story_view ^0.11.0</strong> which depends on <strong>rxdart ^0.22.2</strong>, <strong>rxdart ^0.22.2</strong> is required.
    So, because app depends on <strong>rxdart ^0.23.1</strong>, version solving failed.
    pub get failed (1; So, because app depends on <strong>rxdart ^0.23.1</strong>, version solving failed.)
    Process finished with exit code 1.</p>
  </blockquote>
  
  <p>I am using </p>
  
  <ul>
  <li>story_view: ^0.11.0</li>
  <li>audio_service: ^0.5.6</li>
  </ul>
  
  <p>Which are both the latest version now. Additionally I haven't added rxdart plugin to my project.  </p>