title: Update flutter dependencies in /.pub-cache
body: <p>I erased in my folder <code>.pub-cache/hosted/pub.dartlang.org/this_plugin</code></p>
  
  <p><strong>What is the command to update the dependencies inside <code>pubsec.yaml</code>?</strong>  I believe it is</p>
  
  <blockquote>
    <p>flutter packages get</p>
  </blockquote>
  
  <p>The folder under <code>.pub-cache</code> is still not up to date.</p>
  
  <p>Note: there was a <code>pubspec.lock</code> that I deleted</p>