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Installed the neo branch of Forge Classic, cannot start it when I launch the package
Console output
Python 3.11.13 (main, Jul 23 2025, 00:29:09) [MSC v.1944 64 bit (AMD64)]
Version: neo
Traceback (most recent call last):
File "H:\SD\StabilityMatrix-win-x64\Data\Packages\Stable Diffusion WebUI Forge Neo\launch.py", line 52, in
main()
File "H:\SD\StabilityMatrix-win-x64\Data\Packages\Stable Diffusion WebUI Forge Neo\launch.py", line 41, in main
prepare_environment()
File "H:\SD\StabilityMatrix-win-x64\Data\Packages\Stable Diffusion WebUI Forge Neo\modules\launch_utils.py", line 316, in prepare_environment
raise RuntimeError("PyTorch is not able to access CUDA")
RuntimeError: PyTorch is not able to access CUDA
Please excuse my poor English. Using StabilityMatrix to update WebUI Forge Neo will uninstall torch 2.8.0+cu128 and install torch 2.8.0+cpu instead. Therefore, you must reinstall CUDA within WebUI Forge Neo
Please excuse my poor English. Using StabilityMatrix to update WebUI Forge Neo will uninstall torch 2.8.0+cu128 and install torch 2.8.0+cpu instead. Therefore, you must reinstall CUDA within WebUI Forge Neo
Activity
hongvi20240807 commentedon Nov 4, 2025
Please excuse my poor English. Using StabilityMatrix to update WebUI Forge Neo will uninstall torch 2.8.0+cu128 and install torch 2.8.0+cpu instead. Therefore, you must reinstall CUDA within WebUI Forge Neo
Causes and Solutions
Haoming02/sd-webui-forge-classic#269
Haoming02/sd-webui-forge-classic#277
geojr78 commentedon Nov 4, 2025
Thanks, that seems to have worked!
hybrid897 commentedon Nov 19, 2025
These links seem to be broken now? I'm having the same issue.