Unable to start ComfyUI Desktop v0.4.26

[fangzewang]

[2025-03-05 21:25:17.705] [error] Traceback (most recent call last):
File “C:\Users\WZF\AppData\Local\Programs@comfyorgcomfyui-electron\resources\ComfyUI\main.py”, line 97, in

[2025-03-05 21:25:17.707] [error] apply_custom_paths()
File “C:\Users\WZF\AppData\Local\Programs@comfyorgcomfyui-electron\resources\ComfyUI\main.py”, line 30, in apply_custom_paths
utils.extra_config.load_extra_path_config(config_path)
File “C:\Users\WZF\AppData\Local\Programs@comfyorgcomfyui-electron\resources\ComfyUI\utils\extra_config.py”, line 7, in load_extra_path_config
with open(yaml_path, ‘r’, encoding=‘utf-8’) as stream:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: ‘C:\Users\WZF\AppData\Roaming\ComfyUI\extra_models_config.yaml’

[fangzewang]

[filtered]

@fangzewang

‘C:\Users\WZF\AppData\Roaming\ComfyUI\extra_models_config.yaml’

The app cannot function without this file. The simplest solution is to reinstall the app.

Please click Troubleshoot, then find the Reinstall option.

[fangzewang]

Hey, I’ve tried uninstalling and reinstalling, but the issue remains the same. Also, the troubleshooting results show everything is normal.

[fangzewang]

[zhu]

I have the same problem. Is your problem solved?

[filtered]

That looks frustrating. We will resolve the specific error there in a future release.

There are manual uninstall options in the ComfyUI docs site:

Windows Desktop Version - ComfyUI

You will want to ensure you remove %APPDATA%\ComfyUI before reinstalling. If you run into further issues, please try picking a different install location.