Comfyui does not install

## Describe the bug

ai playground v3.1.0 comfyui backend cant install, get red symbol and repair option, which doesn't work.

Error Log:

Service: comfyui-backend
Command: comfyui-backend startup
Exit Code: Unknown
Duration: 42.9s
Timestamp: 5/19/2026, 2:11:07 AM

Standard Error:
Could not autodetect AIMDO implementation, assuming Nvidia
Adding extra search path checkpoints C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\checkpoints
Adding extra search path loras C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\loras
Adding extra search path loras C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\lora
Adding extra search path vae C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\vae
Adding extra search path text_encoders C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\text_encoders
Adding extra search path text_encoders C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\clip
Adding extra search path clip_vision C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\clip_vision
Adding extra search path style_models C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\style_models
Adding extra search path embeddings C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\embeddings
Adding extra search path diffusers C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\diffusers
Adding extra search path vae_approx C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\vae_approx
Adding extra search path controlnet C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\controlnet
Adding extra search path controlnet C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\t2i_adapter
Adding extra search path gligen C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\gligen
Adding extra search path upscale_models C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\upscale_models
Adding extra search path upscale_models C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\latent_upscale_models
Adding extra search path hypernetworks C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\hypernetworks
Adding extra search path photomaker C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\photomaker
Adding extra search path classifiers C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\classifiers
Adding extra search path model_patches C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\model_patches
Adding extra search path audio_encoders C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\audio_encoders
Adding extra search path diffusion_models C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\diffusion_models
Adding extra search path diffusion_models C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\unet
Adding extra search path insightface C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\insightface
Adding extra search path facerestore_models C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\facerestore_models
Adding extra search path nsfw_detector C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\nsfw_detector
Adding extra search path inpaint C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\models\ComfyUI\inpaint
Setting output directory to: C:\Users\Ocean\Documents\AI-Playground\media
[ComfyUI-Manager] `python -m pip` not available. Falling back to `uv`.
[ComfyUI-Manager] Using standalone `uv` for pip operations.
Using Python 3.12.13 environment at: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\service\.venv
Using Python 3.12.13 environment at: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\service\.venv
Using Python 3.12.13 environment at: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\service\.venv
[ComfyUI-Manager] PyTorch is not installed
Using Python 3.12.13 environment at: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\service\.venv
Resolved 1 package in 2ms
Installed 1 package in 172ms
+ comfyui-frontend-package==1.41.18
[ComfyUI-Manager] 'comfyui-frontend-package' dependency were fixed

Prestartup times for custom nodes:
14.3 seconds: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\custom_nodes\ComfyUI-Manager

Found comfy_kitchen backend eager: {'available': True, 'disabled': False, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'dequantize_mxfp8', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8', 'scaled_mm_mxfp8', 'scaled_mm_nvfp4']}
Found comfy_kitchen backend triton: {'available': True, 'disabled': True, 'unavailable_reason': None, 'capabilities': ['apply_rope', 'apply_rope1', 'dequantize_nvfp4', 'dequantize_per_tensor_fp8', 'quantize_mxfp8', 'quantize_nvfp4', 'quantize_per_tensor_fp8']}
Found comfy_kitchen backend cuda: {'available': False, 'disabled': True, 'unavailable_reason': 'CUDA not available on this system', 'capabilities': []}
Checkpoint files will always be loaded safely.
Total VRAM 7936 MB, total RAM 16287 MB
pytorch version: 2.11.0.dev20260317+xpu
Set vram state to: LOW_VRAM
Device: xpu:0 Intel(R) Arc(TM) A750 Graphics
Windows fatal exception: code 0xc0000139

Stack (most recent call first):
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\python-interpreter\cpython-3.12-windows-x86_64-none\Lib\ctypes\__init__.py", line 379 in __init__
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torch\_ops.py", line 1503 in load_library
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torchvision\extension.py", line 15 in _load_library
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torchvision\extension.py", line 29 in
File "", line 488 in _call_with_frames_removed
File "", line 999 in exec_module
File "", line 935 in _load_unlocked
File "", line 1331 in _find_and_load_unlocked
File "", line 1360 in _find_and_load
File "", line 488 in _call_with_frames_removed
File "", line 1415 in _handle_fromlist
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torchvision\__init__.py", line 7 in
File "", line 488 in _call_with_frames_removed
File "", line 999 in exec_module
File "", line 935 in _load_unlocked
File "", line 1331 in _find_and_load_unlocked
File "", line 1360 in _find_and_load
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\comfy\ldm\cascade\stage_c_coder.py", line 19 in
File "", line 488 in _call_with_frames_removed
File "", line 999 in exec_module
File "", line 935 in _load_unlocked
File "", line 1331 in _find_and_load_unlocked
File "", line 1360 in _find_and_load
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\comfy\sd.py", line 11 in
File "", line 488 in _call_with_frames_removed
File "", line 999 in exec_module
File "", line 935 in _load_unlocked
File "", line 1331 in _find_and_load_unlocked
File "", line 1360 in _find_and_load
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\latent_preview.py", line 5 in
File "", line 488 in _call_with_frames_removed
File "", line 999 in exec_module
File "", line 935 in _load_unlocked
File "", line 1331 in _find_and_load_unlocked
File "", line 1360 in _find_and_load
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\execution.py", line 20 in
File "", line 488 in _call_with_frames_removed
File "", line 999 in exec_module
File "", line 935 in _load_unlocked
File "", line 1331 in _find_and_load_unlocked
File "", line 1360 in _find_and_load
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\main.py", line 197 in
Traceback (most recent call last):
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\main.py", line 197, in
import execution
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\execution.py", line 20, in
from latent_preview import set_preview_method
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\latent_preview.py", line 5, in
from comfy.sd import VAE
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\comfy\sd.py", line 11, in
from .ldm.cascade.stage_c_coder import StageC_coder
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\comfy\ldm\cascade\stage_c_coder.py", line 19, in
import torchvision
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torchvision\__init__.py", line 8, in
from torchvision import (
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torchvision\_meta_registrations.py", line 163, in
@torch.library.register_fake("torchvision::nms")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torch\library.py", line 1087, in register
use_lib._register_fake(
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torch\library.py", line 204, in _register_fake
handle = entry.fake_impl.register(
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Lib\site-packages\torch\_library\fake_impl.py", line 50, in register
if torch._C._dispatch_has_kernel_for_dispatch_key(self.qualname, "Meta"):
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: operator torchvision::nms does not exist

Standard Output:
[START] Security scan
[DONE] Security scan
## ComfyUI-Manager: installing dependencies done.
** ComfyUI startup time: 2026-05-19 02:10:50.085
** Platform: Windows
** Python version: 3.12.13 (main, Mar 24 2026, 22:57:53) [MSC v.1944 64 bit (AMD64)]
** Python executable: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\.venv\Scripts\python.exe
** ComfyUI Path: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI
** ComfyUI Base Folder Path: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI
** User directory: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\user
** ComfyUI-Manager config path: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\user\__manager\config.ini
** Log path: C:\Users\Ocean\AppData\Local\Programs\AI Playground\resources\ComfyUI\user\comfyui.log

Python Environment (pip freeze):
No pip freeze output available
## Environment (please complete the following information):

windows 11
i3 10100
Arc a750