I can't display Classwizard anymore in MFC project in VS 2019
问题 My project started out years ago. Now using VS 2019. Whilst I can right-click and add event handlers (since it uses a new VS wizard), and I can right-click the class and add generic variables (since it uses a new VS wizard) I can't display class wizard any more: I have tried cleaning the project and tried renaming my folder. It refuses to display and shows that message: Value does not fall within the expected range. The other error message that shows is: The parameter is incorrect. (Exception