Delphi.Personality is not avaliable

Recently, I get this error, and all Delphi-related project/file creation items are missing:

The project can not be loaded because the required personality Delphi.Personality is not available..

What I need to do is select "Manage Platform" and then RAD Studio will reinstall some components and restore the project menu.

However, the issue will occur again when I close and re-open RAD Studio.

I did not have such a problem before. Does anyone know how to fix it?


Deleting the .dproj file and opening the .dpr or .dpk, which recreates the .dproj, fixed it for me. HTH