Unable to run or re-install ComfyUI 0.4.30

[Dan10]

I had ComfyUI 0.4.30 installed and working, until I deleted a couple checkpoints directly from the folder… apparently that was a mistake. From that point, I am unable to open ComfyUI. I have tried uninstalling, and reinstalling all the files (ComfyUI, Git, Python) to replace whatever was broken, but keep getting errors. What am I doing wrong?

Task Error:
Error invoking remote method ‘reinstall’: Error: ENOENT: no such file or directory, lstat ‘C:\Users\Dan\AppData\Roaming\ComfyUI\extra_models_config.yaml’

Comfyui.log
[2025-03-27 19:00:56.872] [error] No pyvenv.cfg file

[shoubushi]

Hi Dan,

I got the same issue as what you’ve encountered. My workaround is to download the “extra_models_config.yaml” from the web below

Experiment/extra_models_config.yaml

and put/paste it under the folder
‘C:\Users\Dan\AppData\Roaming\ComfyUI'
Then you can try again to click the reinstall and it should work.
Hopefully it helps!

[Dan10]

@shoubushi

My workaround is to download the “extra_models_config.yaml” from th

Unfortunately, that fix didn’t work for me. I got the following error.

The Console Log shows this message:

PS C:\Users\Dan\Documents\ComfyUI> & “C:\Users\Dan\AppData\Local\Programs@comfyorgcomfyui-electron\resources\uv\win\uv.exe” “venv” “–python” “3.12” “–python-preference” “only-managed”
Using CPython 3.12.9
Creating virtual environment at: .venv
uv::venv::creation

x Failed to create virtualenv
-> The directory .venv` exists, but it’s not a virtual environment
PS C:\Users\Dan\Documents\ComfyUI> echo “_-end-1744324412570:$?”
_-end-1744324412570:False