title: A dependency specification must be a string or a mapping
body: <p>Error on line 32, column 5 of pubspec.yaml: A dependency specification must be a string or a mapping.
     ╷</p>
  
  <pre><code>32 │ ┌     - assets/
  33 │ └ 
     ╵
  </code></pre>
  
  <p>pub get failed (65;    ╵)</p>
  
  <p><a href="https://i.stack.imgur.com/fl1Bd.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fl1Bd.png" alt="enter image description here"></a></p>