After updating Visual Studio to version 16.3.4 the Intel Fortran integration do not work properly.
I did reinstall the Intel Fortran 2019 update 5 and the situation improved so that VS recognize the Fortran source code files.
But one problem remains: VS says that my Fortran project files are incompatible.
Do anyone have a workaround?
I had the same problem. This will be a two-step process:
It worked for me. This was the first time that updating Visual Studio caused this type of problem.