title: Add-Migration not working in asp.net core
body: <p>I'm tried to Add-Migration in my asp.net core application but migration not working
  Please any one give me ans for this what's the issue</p>
  
  <p><a href="https://i.stack.imgur.com/UP1nH.png" rel="nofollow noreferrer">Please check this image i added all information reading issue everything i combined into single screen-shot for more clarification  </a></p>