collink could not be started [Windows 11, DisplayCAL 3.9.14]

[janos666]

Describe the bug I tried to create a 3DLUT but only got an error that states "collink could not be started".

To Reproduce Steps to reproduce the behavior:

1. Switch to the '3DLUT tab'
2. Click on 'Create 3DLUT'
3. See error: "The process [...] could not be started
4. The log window is completely empty (I can't see any further details about this error)

Expected behavior A 3DLUT should be created without errors. The log window should not be empty.

Versions (please complete the following information):

• OS: Windows 11 24H2
• Python Version: none (I used the recommanded installer for Windows, I have no Python installed. More correctly, I had Python 3.12 installed from earlier but I tried to uninstall it completely. Nothing changed.)
• ArgyllCMS Version: 3.3.0 Win64 (as downloaded by DisplayCAL on the first run)
• DisplayCAL Version: 3.9.14

Additional context I just tried to transition from the latest unsupperted DisplayCAL to this new variant. I picked az old ICM profile which worked fine in the older version DisplayCAL was installed to C:/DisplayCAL (not under "Program Files") I tried to delete all the old *.ini files to start with a clean slate. I also tried to run DisplayCAL as Administrator.

By the way, I am able to run "collink" from a terminal without any inputs and I got the usual verbose help message. But I didn't try using collink manually from the terminal with real ICC/ICM profiles typed in.

[janos666]

Oh, my bad. I installed Python 3.11.9 and I can create a 3DLUT now.