title: error: The method 'setMapStyle' isn't defined for the type 'Completer'
body: <p><a href="https://i.stack.imgur.com/esXpf.png" rel="nofollow noreferrer">enter image description here</a></p>
  <p>I'm getting this error when I'm trying to change ma Google maps Color</p>
  <p>error: The method 'setMapStyle' isn't defined for the type 'Completer'.</p>