title: OS Error: No address associated with hostname, errno = 7
body: <p>I'm using <code>dio</code> instead of <code>http</code>. When I send a login request to the API, I get this error:</p>
  <blockquote>
  <p>SocketException: Failed host lookup: 'MY URL' (OS Error: No address
  associated with hostname, errno = 7)</p>
  </blockquote>
  <p>What is this for?</p>