comfyui install craches error -999

[delta5o1]

I have python 3.12.x, manually installed pytorch, installed ms studio 2022 with python package, .net packs, and nothing seems to help with comfyui's main (beta) installer.

x Python interpreter not found at
| C:\Users\sps02\AppData\Roaming\uv\python\cpython-3.12.9-windows-x86_64-none\python.exe

[2025-04-10 16:35:58.294] [info] PS C:\Users\sps02\Documents\ComfyUI>
[2025-04-10 16:35:58.317] [info] > echo "_-end-1744317357373:$?"

[2025-04-10 16:35:58.404] [info] _-end-1744317357373:False
[2025-04-10 16:35:58.409] [error] Error creating virtual environment: Error: Failed to create virtual environment: exit code -999

[ltdrdata]

Why don't you use portable version or desktop version?

[delta5o1]

This is the desktop version.

[webfiltered]

It looks like you may have a broken uv installation / cache. Please try the below (in PowerShell):

# Windows PowerShell 5.1
& "~\AppData\Local\Programs\@comfyorgcomfyui-electron\resources\uv\win\uv" python install -f -r 3.12.9