Shared Runtime not working gives Error in Office Word JS Add-in

Question

when I this Shared Runtime Requirements in my manifest file my add-in gives Error and not working. I am using this code. When I remove Requirements from my manifest then my add-in is working.

 <Requirements>
      <Sets DefaultMinVersion="1.1">
        <Set Name="SharedRuntime" MinVersion="1.1"/>
      </Sets>
   </Requirements>
// and

    <Runtimes>
       <Runtime resid="contoso.taskpane.url" lifetime="long"></Runtime>
    </Runtimes>