I have an MDK V4 project that I am trying to open in a new install of uVision V. I get the following dialogue: https://imgur.com/fMKvf1X
"This is an MDK Version 4 project requiring device support for Cortex-M based devices."
I clicked on "Install Legacy Support" and downloaded legacy support for Cortex-M devices from www2.keil.com/.../ . I installed it and Keil gives me exactly the same message the next time I open it.
I should add that I can't migrate the project either because I get an error saying it's not possible due to the project using Keil RTX.
Did you find a solution to this problem?