title: Issue with reference .net core class library to project
body: <p>I created new asp.net core WebApplication and .net core class library.
  Then I tried to add a reference to .net core class library from asp.net core.
  It built ok, but it is not visible.</p>
  
  <p><a href="https://i.stack.imgur.com/zjiN8.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zjiN8.png" alt="enter image description here"></a></p>
  
  <p>Any idea?</p>