title: Flutter doctor command but nothing happen
body: <p>I use a MacBook Pro and install flutter, but when I type <code>flutter doctor</code>, it doesn't respond (about 10 minutes passed).</p>
  
  <p><a href="https://i.stack.imgur.com/G3F5X.png" rel="nofollow noreferrer">flutter doctor</a></p>
  
  <p>this <a href="https://github.com/flutter/flutter/issues/18869" rel="nofollow noreferrer">issue</a> same to me, but I don't install Mamp software.</p>