So, I am used to using Console.Writeline during development to generate debugging output (and then remove them and comment them out when no longer needed). My app is a C# Windows Forms App (not a WPF app). But the output is simply not appearing in the Output window (Show output from: Debug) where I was expecting it (and where I see it in VS 2017. What might I have overlooked? (I created a new little app from the template just as a test - and it doesn't show up on that one, either).

