title: I am getting this error : error listen EADDRINUSE: address already in use :::19000. What to do?
body: <p>Developer tools running on http://localhost:19002
  Opening developer tools in the browser...
  Starting Metro Bundler
  error listen EADDRINUSE: address already in use :::19000.</p>
  <p>Error: listen EADDRINUSE: address already in use :::19000</p>