title: Add controller - > Unable to load the service index for "https://www.nuget.org/packages/Newtonsoft.json"
body: <p><strong>error creating controller in VS C #</strong></p>
  <p><a href="https://i.stack.imgur.com/KrLOA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KrLOA.png" alt="enter image description here" /></a></p>