[GH-ISSUE #30] Installation through ComfyUI Manager still fails on ComfyUI portable version. Why this has not been addressed so far? #24

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opened 2026-10-26 22:28:06 +00:00 by bsakaguchi · 6 comments
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Originally created by @myonlang on GitHub (Apr 17, 2026).
Original GitHub issue: https://github.com/Comfy-Org/ComfyUI_Nvidia_VFX_Nodes/issues/30

ComfyUI_NVIDIA_RTX_Nodes install via ComfyUI manager still fails and nobody seems to address.
This issue has been around since day1 but nobody fixes it. Why the XXXX is going on?

Originally created by @myonlang on GitHub (Apr 17, 2026). Original GitHub issue: https://github.com/Comfy-Org/ComfyUI_Nvidia_VFX_Nodes/issues/30 ComfyUI_NVIDIA_RTX_Nodes install via ComfyUI manager still fails and nobody seems to address. This issue has been around since day1 but nobody fixes it. Why the XXXX is going on?
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@Psydis commented on GitHub (Apr 19, 2026):

I don't know if this will help, but I managed to install it manually via GIT after adding the necessary modules:

  1. ./python.exe -m pip install wheel-stub

  2. ./python.exe -m pip install nvidia-vfx

Hope this helps! Good luck!

<!-- gh-comment-id:4276673266 --> @Psydis commented on GitHub (Apr 19, 2026): I don't know if this will help, but I managed to install it manually via GIT after adding the necessary modules: 1) ./python.exe -m pip install wheel-stub 2) ./python.exe -m pip install nvidia-vfx Hope this helps! Good luck!
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@CoreyCorza commented on GitHub (Apr 29, 2026):

-----------------> Why this has not been addressed so far? <--------------

<!-- gh-comment-id:4347919858 --> @CoreyCorza commented on GitHub (Apr 29, 2026): -----------------> `Why this has not been addressed so far?` <--------------
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@chille9 commented on GitHub (May 8, 2026):

Install still fails.

<!-- gh-comment-id:4408404302 --> @chille9 commented on GitHub (May 8, 2026): Install still fails.
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@sandrique commented on GitHub (May 9, 2026):

FIX (that make RTX NODES forks in COMFYUI):
.\python_embeded\python.exe -m pip install nvidia-vfx --extra-index-url https://pypi.nvidia.com
and manually
git clone https://github.com/Comfy-Org/Nvidia_RTX_Nodes_ComfyUI.git

_previous solution doesn't work (pip can't find repo)

  • ./python.exe -m pip install wheel-stub
  • ./python.exe -m pip install nvidia-vfx_
<!-- gh-comment-id:4412555534 --> @sandrique commented on GitHub (May 9, 2026): FIX (that make RTX NODES forks in COMFYUI): .\python_embeded\python.exe -m pip install nvidia-vfx --extra-index-url https://pypi.nvidia.com and manually git clone https://github.com/Comfy-Org/Nvidia_RTX_Nodes_ComfyUI.git _previous solution doesn't work (pip can't find repo) > * ./python.exe -m pip install wheel-stub > * ./python.exe -m pip install nvidia-vfx_
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@hswlab commented on GitHub (May 12, 2026):

@Psydis thank you. This solution worked for me.
I've installed the RTX Node Pack first, after it couldn't be imported after restarting ComfyUI, I added this two lines, then the import of the new nodes was successful
./python.exe -m pip install wheel-stub
./python.exe -m pip install nvidia-vfx

<!-- gh-comment-id:4432056875 --> @hswlab commented on GitHub (May 12, 2026): @Psydis thank you. This solution worked for me. I've installed the RTX Node Pack first, after it couldn't be imported after restarting ComfyUI, I added this two lines, then the import of the new nodes was successful ./python.exe -m pip install wheel-stub ./python.exe -m pip install nvidia-vfx
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@WASasquatch commented on GitHub (Oct 18, 2026):

For me wheel_stub can't install on portable, it has a python313._pth file that makes it ignore the pip env. You'll end up with pip._vendor.pyproject_hooks._impl.BackendUnavailable: Cannot import 'wheel_stub.buildapi'

<!-- gh-comment-id:6251421747 --> @WASasquatch commented on GitHub (Oct 18, 2026): For me `wheel_stub` can't install on portable, it has a `python313._pth` file that makes it ignore the pip env. You'll end up with `pip._vendor.pyproject_hooks._impl.BackendUnavailable: Cannot import 'wheel_stub.buildapi'`
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Comfy-Org/ComfyUI_Nvidia_VFX_Nodes#24
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