android studio error: Failed to find target with hash string 'android-24'
<p>I just downloaded android studio and it wouldn't download I keep getting </p>

<blockquote>
  <p>Error: Failed to find target with hash string 'android-24'.</p>
</blockquote>

<p>please help me, if you have an idea because I cannot do anything and its annoying. </p>

<p><img src="https://i.stack.imgur.com/F5TSf.jpg" alt="Screenshot"></p>