title: Cannot making new controller after upgrade Visual Studio 2019
body: <p>I cannot create a new controller on my ASP.NET MVC API. When I try to create a new controller, Visual Studio 2019 always throws an error (as shown in the screenshot):</p>
  
  <p><img src="https://i.ibb.co/NjcQWvt/error-create-controller.png" alt="Error creating controller"></p>
  
  <p>I used Microsoft Visual Studio 2017 before, and it worked normally. But after upgrade, I have several issues with this IDE like creating controller in my existing project and cannot create a new ASP.NET Core MVC web application.</p>
  
  <p>Hopefully anyone can help me. </p>
  
  <p>Thanks in advance</p>