Advappstyler.dcu

I ported a project from Delphi 11 with his TMS UI Pack to Delphi 12 wih new TMS UI Pack and I have an error at compilation time:

could not create output file E:\Users\Deault\Documents\TMS VCL UI Pack\advappstyler.dcu

The original project is skinned with Delphi 11 style Smokey Quartz Kamri

How can I resolve this problem? I do not use TMS AdvAppStyler, I use only TAdvStringGrid component.

There must be a setup issue in your IDE.
I suggest to start checking your output path and that you have write permissions to this output path.