New to ComfyUI! Help on making it work!

Desktop Feedback Windows
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Hello everyone, new to ComfyUI and i would love if someone could help me!

Ill start with my pc configuration

Processor: AMD Ryzen 5 2600 six-core processor

Board: ASUS Prime B450M-A II

RAM: 16GB DDR4

Graphics: NVIDIA GeForce GTX 1080 Ti 11264 Memory

Windows 10 Pro

I downloaded from the ComfyUI website for Windows and installed, tried to generate image to video, and downloaded the needed missing models but the following message appeared “CLIPVisionEncode

CUDA error: no kernel image is available for execution on the device CUDA kernel errors might be asynchronously reported at some other API call, so the stacktrace below might be incorrect. For debugging consider passing CUDA_LAUNCH_BLOCKING=1 Compile with `TORCH_USE_CUDA_DSA` to enable device-side assertions.”

What can i do?

Thanks and sorry for my english

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I had the same issue and find a way to make it work.

1)First, I did a clean installation of comfy ui by deleting the apps and all the folder (don’t know if it’s useful, but I find out the windows uninstaller don’t deleted everything)

  • C:\Users[windows_username]\AppData\Local\Programs → deleted @comfyorgcomfyui-electroncomfyorgcomfyui-electroncomfyorgcomfyui-electroncomfyorgcomfyui-electron

  • C:\Users[windows_username]\A@comfyor@comfyorgcomfyui-electron-updatercomfyui-electron-updaterpData\Local\ → deleted @comfyorgcomfyui-electron-updater

  • C:\Users[windows_username]\AppData\Local\uv → deleted this whole folder

  • C:\Users[windows_username]\AppData\Roaming → deleted ComfyUI folder

  1. reinstallation of ComfyUI

same step has usual chose the nvdia gpu and…at the mirror setting page

in the torch install mirror, the address written is https://download.pytorch.org/whl/cu129

cu129 is not compatible with the GTX. I change the cu129 for cu126 (https://download.pytorch.org/whl/cu126) and completed the installation normally.

Now I can use comfy with my gtx 1080 ti again. And the error is gone

hope it works for you!

1 Like
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Thanks for that, @nick! Just wanted to chime in and say that you no longer need to go through the delete insanity.

When uninstalling any version after v0.4.74, the uninstaller cleans up properly. It will delete all of these by default (it’s customisable):

  • Documents\ComfyUI\.venv
  • %APPDATA%\ComfyUI (translates to AppData\Roaming\ComfyUI)
  • The app files themselves (formerly AppData\Local\Programs\@comfyorg... etc)
  • Temporary app updater files

It does not clear your uv cache, which you may still need to do:

Hopefully we can get support for the 10 series cards back in at some point.

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This does not seem to work anymore. What should I do? It was working fine until today, when I tried installing a custom node that updated the python torch thing…

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Your custom node has killed the torch installation. You need to do a clean install of ComfyUI. And reinstall all. Minus this custom node.

It is one of the nastiest behaviours of ComfyUI that custom nodes are allowed to mess with python versions and torch versions. It simply breaks everything then.

As a note, the portable version might be your friend here. It contains everything needed in its own folder.