title: Getting an error trying to add a new Web Service reference to my c# project in VS2019
body: <p>I am not able to add new Web Service references to my C# project. Visual Studio 2019 fails to open the dialog to add the Web Service.</p>
  
  <p>When I launch the Add Connected Services option in my .NET 4.7.2 C# project, and try to add a SOAP Web Service reference using the "Microsoft WCF Web Service Reference Provider", instead of showing the dialog to add the Web Service reference, it shows an alert message with the following error:</p>
  
  <p>The connected services component 'Microsoft WCF Web Service Reference Provider' failed: The project reference specification 'Microsoft.Csharp' does not have a file path.</p>
  
  <p>BTW, even though this is a regular .NET framework assembly project, I am using the new .NET SDK style project file. Also, it works fine for the first web service reference that I add. Any further attempts to add more web service references cause this error!</p>
  
  <p>Does anyone know whey this would happen?</p>