title: Unable to sideload the Office Add-in when running 'npm start'
body: <p>I'm trying to run Outlook-add-in using <code>npm start</code>. But it gives me an error that 
  <code>
  Sideloading the Office Add-in...
  Error: Unable to start debugging.
  Error: Unable to sideload the Office Add-in. 
  Error: Sideload is not supported.
  </code></p>
  
  <p>I'm running direct demo project which Microsoft provided for Outlook-add-in. Also rund <code>npm run dev-server</code> before <code>npm start</code> as i'm running in mac.
  <a href="https://docs.microsoft.com/en-us/outlook/add-ins/quick-start?tabs=yeomangenerator" rel="noreferrer">https://docs.microsoft.com/en-us/outlook/add-ins/quick-start?tabs=yeomangenerator</a></p>
  
  <p>I have done some research to find the issue but unable to come up with any. Any help would be grateful.</p>