[Bug] ERROR: Failed to install from all available sources.

[eccentricworx]

Checklist

• 1. I have searched for related issues and FAQs (https://github.com/nunchaku-tech/nunchaku/blob/main/docs/faq.md) but was unable to find a solution.
• 2. The issue persists in the latest version.
• 3. Please note that without environment information and a minimal reproducible example, it will be difficult for us to reproduce and address the issue, which may delay our response.
• 4. If your report is a question rather than a bug, please submit it as a discussion at https://github.com/nunchaku-tech/ComfyUI-nunchaku/discussions/new/choose. Otherwise, this issue will be closed.
• 5. I will do my best to describe the issue in English.

Describe the Bug

wanted to reinstall via the wheel workflow in order to get the z-image DiT Loader, which was missing after updating the nodes. Now i get this message:

ERROR:
Failed to install from all available sources.

Last error: Installation failed for https://github.com/nunchaku-tech/nunchaku/releases/download/v1.1.0/nunchaku-1.1.0+torch2.8-cp312-cp312-win_amd64.whl. Error: HTTP Error 404: Not Found

I checked that link via http, it´s basically a 404

--

btw. creating a bug report, your checklist link is not working either.
https://github.com/nunchaku-tech/nunchaku/blob/main/docs/faq.md leads to a 404 as well, thats why i didn´t check that box.

Environment

ComfyUI v0.6.0
ComfyUI_frontend v1.34.9
ComfyUI_desktop v0.6.2
ComfyUI-Manager V4.0.3
OS win32
Python Version 3.12.9 (main, Mar 17 2025, 21:06:20) [MSC v.1943 64 bit (AMD64)]
Embedded Python false
Pytorch Version 2.8.0+cu129
Arguments
C:\sd_comfyui_I\resources\ComfyUI\main.py --user-directory C:\sd_comfyui\user --input-directory C:\sd_comfyui\input --output-directory C:\sd_comfyui\output --front-end-root C:\sd_comfyui_I\resources\ComfyUI\web_custom_versions\desktop_app --base-directory C:\sd_comfyui --extra-model-paths-config C:\Users\worx\AppData\Roaming\ComfyUI\extra_models_config.yaml --log-stdout --listen 127.0.0.1 --port 8001 --enable-manager --enable-manager-legacy-ui

Reproduction Steps

Your own install wheel workflow.

install_wheel.json

[tazztone]

as you can see there are no torch 2.8 windows wheels: https://github.com/nunchaku-tech/nunchaku/releases/tag/v1.1.0

[tazztone]

ok it seems there are some here https://huggingface.co/JusteLeo/Nunchaku-Zimage-Win-Wheels/tree/main

[eccentricworx]

Having trouble to get this one to work after i downloaded it...
"ERROR: nunchaku-1.1.0+torch2.8-cp312-cp312-win_amd64.whl is not a supported wheel on this platform."
I´m giving up. Thank you anyway!

[shawnlau23-coder]

They need to fix this. It ridiculous it is impossible to set up. ComfyUI manager needs to remove it. WHY are you using such an old version of numpy?1.26.4? Its getting to a point if you use nunchaku, that will be about the only thing you'll be able to use in that ComfyUI.

[radlinsky]

Facing similar issue.. I managed to install via this approach

It's confusing, because the Nunchaku installer node gives the same error described in this issue:

--- Trying source: modelscope for version 1.1.0 ---
Attempting to install: nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl
Failed to install from modelscope: Installation failed for https://modelscope.cn/models/nunchaku-tech/nunchaku/resolve/master/nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl. Error: HTTP Error 500: Internal Server Error. Trying next source...

--- Trying source: huggingface for version 1.1.0 ---
Attempting to install: nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl
Failed to install from huggingface: Installation failed for https://huggingface.co/nunchaku-tech/nunchaku/resolve/main/nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl. Error: Command '['C:\\Users\\radli\\miniconda3\\envs\\comfyenv\\python.exe', '-m', 'uv', 'pip', 'install', 'https://huggingface.co/nunchaku-tech/nunchaku/resolve/main/nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl']' returned non-zero exit status 2.. Trying next source...

--- Trying source: github for version 1.1.0 ---
Attempting to install: nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl
Failed to install from github: Installation failed for https://github.com/nunchaku-tech/nunchaku/releases/download/v1.1.0/nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl. Error: Command '['C:\\Users\\radli\\miniconda3\\envs\\comfyenv\\python.exe', '-m', 'uv', 'pip', 'install', 'https://github.com/nunchaku-tech/nunchaku/releases/download/v1.1.0/nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl']' returned non-zero exit status 2.. Trying next source...
Prompt executed in 12.90 seconds
got prompt
Checking for new versions from CDN: https://nunchaku.tech/cdn/nunchaku_versions.json...
Successfully created/updated 'nunchaku_versions.json' from CDN.
Prompt executed in 0.18 seconds

But when I use the manual approach, the compiled wheel I need does seem to exist. This was the line I used successfully:

(comfyenv) D:\Other\ComfyUI>C:\Users\radli\miniconda3\envs\comfyenv\python.exe -m pip install https://github.com/nunchaku-tech/nunchaku/releases/download/v1.1.0/nunchaku-1.1.0+torch2.9-cp312-cp312-win_amd64.whl