# Comfyui cant start on desktop **URL:** \ **Category:** Desktop Feedback\ **Tags:** issue, starting-comfyui\ **Created:** [March 29, 2026, 8:59pm UTC](https://forum.comfy.org/t/comfyui-cant-start-on-desktop/4363 "2026-03-29T20:59:13Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![borkatachefa](https://avatars.discourse-cdn.com/v4/letter/b/b5e925/32.png) [@borkatachefa](https://forum.comfy.org/u/borkatachefa)\ **Post date:** [March 29, 2026, 8:59pm UTC](https://forum.comfy.org/t/comfyui-cant-start-on-desktop/4363/1 "2026-03-29T20:59:13Z")
i download comfyui and then it just never started. im on a windows pc with an AMD graphics card Here are the logs comfyui.log [2026-03-29 21:57:32.453] [info] comfy-aimdo failed to load: Could not find module ‘C:\Users\bdsim\Documents\ComfyUI.venv\Lib\site-packages\comfy\_aimdo\aimdo.dll’ (or one of its dependencies). Try using the full path with constructor syntax. NOTE: comfy-aimdo is currently only support for Nvidia GPUs [2026-03-29 21:57:32.639] [info] Adding extra search path custom\_nodes C:\Users\bdsim\Documents\ComfyUI\custom\_nodes Adding extra search path download\_model\_base C:\Users\bdsim\Documents\ComfyUI\models [2026-03-29 21:57:32.640] [info] Adding extra search path custom\_nodes C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\custom\_nodes Setting output directory to: C:\Users\bdsim\Documents\ComfyUI\output Setting input directory to: C:\Users\bdsim\Documents\ComfyUI\input Setting user directory to: C:\Users\bdsim\Documents\ComfyUI\user [2026-03-29 21:57:32.747] [error] C:\Users\bdsim\Documents\ComfyUI.venv\Lib\site-packages\requests\__init_\_.py:113: RequestsDependencyWarning: urllib3 (2.6.3) or chardet (7.2.0)/charset\_normalizer (3.4.6) doesn’t match a supported version! warnings.warn( [2026-03-29 21:57:34.002] [info] [START] Security scan [DONE] Security scan \*\* ComfyUI startup time: [2026-03-29 21:57:34.003] [info] 2026-03-29 21:57:34.002 \*\* Platform: Windows \*\* Python version: 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)] \*\* Python executable: C:\Users\bdsim\Documents\ComfyUI.venv\Scripts\python.exe \*\* ComfyUI Path: C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI \*\* ComfyUI Base Folder Path: C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI \*\* User directory: [2026-03-29 21:57:34.004] [info] C:\Users\bdsim\Documents\ComfyUI\user \*\* ComfyUI-Manager config path: C:\Users\bdsim\Documents\ComfyUI\user\_\_manager\config.ini \*\* Log path: C:\Users\bdsim\Documents\ComfyUI\user\comfyui.log [2026-03-29 21:57:34.880] [info] [ComfyUI-Manager] Skipped fixing the ‘comfyui-frontend-package’ dependency because the ComfyUI is outdated. [2026-03-29 21:57:34.882] [info] [PRE] ComfyUI-Manager [2026-03-29 21:57:37.426] [info] Found comfy\_kitchen backend cuda: {‘available’: False, ‘disabled’: True, ‘unavailable\_reason’: ‘CUDA not available on this system’, ‘capabilities’: } [2026-03-29 21:57:37.427] [info] 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’: False, ‘disabled’: True, ‘unavailable\_reason’: “ImportError: No module named ‘triton’”, ‘capabilities’: } [2026-03-29 21:57:37.433] [info] Checkpoint files will always be loaded safely. [2026-03-29 21:57:37.469] [error] Traceback (most recent call last): [2026-03-29 21:57:37.470] [error] File “C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\main.py”, line 197, in import execution File “C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\execution.py”, line 17, in import comfy.model\_management [2026-03-29 21:57:37.471] [error] File “C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\comfy\model\_management.py”, line 256, in total\_vram = get\_total\_memory(get\_torch\_device()) / (1024 \* 1024) 2026-03-29 21:57:37.471\] \[error 2026-03-29 21:57:37.472\] \[error 2026-03-29 21:57:37.473\] \[error 2026-03-29 21:57:37.473\] \[error 2026-03-29 21:57:37.474\] \[error [2026-03-29 21:57:37.475] [error] ^^ [2026-03-29 21:57:37.475] [error] ^^^^^^^ [2026-03-29 21:57:37.476] [error] ^^^^^^ [2026-03-29 21:57:37.476] [error] ^^^ File “C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\comfy\model\_management.py”, line 206, in get\_torch\_device [2026-03-29 21:57:37.477] [error] return torch.device(torch.cuda.current\_device()) 2026-03-29 21:57:37.478\] \[error 2026-03-29 21:57:37.478\] \[error 2026-03-29 21:57:37.479\] \[error [2026-03-29 21:57:37.480] [error] ^^^ [2026-03-29 21:57:37.480] [error] ^^^^^ [2026-03-29 21:57:37.481] [error] ^^^^^^ [2026-03-29 21:57:37.481] [error] ^^^^^ [2026-03-29 21:57:37.482] [error] ^^^^^^^^ 2026-03-29 21:57:37.482\] \[error File “C:\Users\bdsim\Documents\ComfyUI.venv\Lib\site-packages\torch\cuda\__init_\_.py”, line 1094, in current\_device [2026-03-29 21:57:37.483] [error] \_lazy\_init() [2026-03-29 21:57:37.484] [error] File “C:\Users\bdsim\Documents\ComfyUI.venv\Lib\site-packages\torch\cuda\__init_\_.py”, line 417, in \_lazy\_init raise AssertionError(“Torch not compiled with CUDA enabled”) 2026-03-29 21:57:37.484\] \[error AssertionError: Torch not compiled with CUDA enabled 2026-03-29 21:57:37.485\] \[error main.log [2026-03-29 21:57:30.678] [info] Using uv at C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\uv\win\uv.exe [2026-03-29 21:57:30.679] [info] Install state: installed 2026-03-29 21:57:30.679\] \[info\] Validating installation. Recorded state: \[installed [2026-03-29 21:57:30.681] [info] Running uv command directly: pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\requirements.txt [2026-03-29 21:57:30.681] [info] Running uv child process: uv pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\requirements.txt [2026-03-29 21:57:30.681] [info] Running command: C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\uv\win\uv.exe pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\requirements.txt in C:\Users\bdsim\Documents\ComfyUI [2026-03-29 21:57:30.899] [info] Running uv command directly: pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\manager\_requirements.txt [2026-03-29 21:57:30.899] [info] Running uv child process: uv pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\manager\_requirements.txt [2026-03-29 21:57:30.899] [info] Running command: C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\uv\win\uv.exe pip install --dry-run -r C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\manager\_requirements.txt in C:\Users\bdsim\Documents\ComfyUI [2026-03-29 21:57:31.137] [info] Validation result: isValid:true, state:installed {“inProgress”:false,“installState”:“installed”,“basePath”:“OK”,“venvDirectory”:“OK”,“pythonInterpreter”:“OK”,“uv”:“OK”,“pythonPackages”:“OK”,“git”:“OK”,“vcRedist”:“OK”} [2026-03-29 21:57:31.848] [info] Server start [2026-03-29 21:57:31.852] [error] Log rotation: cannot access log dir C:\Users\bdsim\AppData\Roaming\ComfyUI\logs\comfyui.log [2026-03-29 21:57:31.852] [info] Running command: C:\Users\bdsim\Documents\ComfyUI.venv\Scripts\python.exe C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\main.py --user-directory C:\Users\bdsim\Documents\ComfyUI\user --input-directory C:\Users\bdsim\Documents\ComfyUI\input --output-directory C:\Users\bdsim\Documents\ComfyUI\output --front-end-root C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\ComfyUI\web\_custom\_versions\desktop\_app --base-directory C:\Users\bdsim\Documents\ComfyUI --database-url sqlite:///C:/Users/bdsim/Documents/ComfyUI/user/comfyui.db --extra-model-paths-config C:\Users\bdsim\AppData\Roaming\ComfyUI\extra\_models\_config.yaml --log-stdout --listen 127.0.0.1 --port 8000 --enable-manager in C:\Users\bdsim\Documents\ComfyUI [2026-03-29 21:57:31.882] [info] Received renderer-ready message! [2026-03-29 21:57:38.061] [error] Python process exited with code 1 and signal null [2026-03-29 21:57:38.063] [error] Unhandled exception during server start Error: Python process exited with code 1 and signal null at ChildProcess. (C:\Users\bdsim\AppData\Local\Programs\ComfyUI\resources\app.asar.vite\build\main.cjs:38781:18) at ChildProcess.emit (node:events:519:28) at ChildProcess.\_handle.onexit (node:internal/child\_process:294:12) --- _[View the full topic](https://forum.comfy.org/t/comfyui-cant-start-on-desktop/4363)._