title: Stopping the error "Authorisation is required to perform that action" in Google Apps Script
body: <p>I keep getting this error message when I try to view my deployed app.</p>
  
  <blockquote>
    <p>Authorisation is required to perform that action</p>
  </blockquote>
  
  <p>How do I get around the error?</p>
  
  <p>Services in use in the script:</p>
  
  <ul>
  <li><code>ScriptDB</code></li>
  <li><code>UiApp</code></li>
  </ul>
  
  <p>(I think that is all)</p>
  
  <p>I can't find the answer in the documentation, so I would be very grateful for some help.</p>