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[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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Comfy-Org/ComfyUI_Nvidia_VFX_Nodes#24
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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?
@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:
./python.exe -m pip install wheel-stub
./python.exe -m pip install nvidia-vfx
Hope this helps! Good luck!
@CoreyCorza commented on GitHub (Apr 29, 2026):
----------------->
Why this has not been addressed so far?<--------------@chille9 commented on GitHub (May 8, 2026):
Install still fails.
@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)
@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
@WASasquatch commented on GitHub (Oct 18, 2026):
For me
wheel_stubcan't install on portable, it has apython313._pthfile that makes it ignore the pip env. You'll end up withpip._vendor.pyproject_hooks._impl.BackendUnavailable: Cannot import 'wheel_stub.buildapi'