title: Git error. Command: with exit code 128 in Flutter
body: <p>attempting to use this package in my flutter application</p>
  <pre><code>plain_notification_token:
      git:
        url: git@github.com:zionnite/plain_notification_token.git
  </code></pre>
  <p><a href="https://i.stack.imgur.com/84nfJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/84nfJ.png" alt="enter image description here" /></a></p>
  <p>Have deleted <code>/.pub-cache</code> yet error still persists</p>
  <p><strong>please what do I need to Do?</strong></p>