I download the desktop app from ComfyUI | Generate video, images, 3D, audio with AI, run the .exe, (0) GPU is nvidia, (1) folder is C:\AI for example, (2) no migration, this is a fresh pc, (3) I change nothing, when I click “next” I see a console for half a second and after that, I get “Can’t start ComfyUI Desktop v0.4.51”.
Fucking great.
Logs:
[2025-06-12 18:59:48.472] [info] Using uv at C:\Users\Nino\AppData\Local\Programs\@comfyorgcomfyui-electron\resources\uv\win\uv.exe
[2025-06-12 18:59:48.472] [info] Install state: started
[2025-06-12 18:59:48.472] [info] Starting installation.
[2025-06-12 19:00:20.289] [info] Creating ComfyUI directories in C:\AI
[2025-06-12 19:00:20.289] [info] Created directory: C:\AI\custom_nodes
[2025-06-12 19:00:20.289] [info] Created directory: C:\AI\input
[2025-06-12 19:00:20.290] [info] Created directory: C:\AI\output
[2025-06-12 19:00:20.290] [info] Created directory: C:\AI\user
[2025-06-12 19:00:20.290] [info] Created directory: C:\AI\user\default
[2025-06-12 19:00:20.290] [info] Created directory: C:\AI\models
[2025-06-12 19:00:20.291] [info] Created directory: C:\AI\models\checkpoints
[2025-06-12 19:00:20.291] [info] Created directory: C:\AI\models\clip
[2025-06-12 19:00:20.291] [info] Created directory: C:\AI\models\clip_vision
[2025-06-12 19:00:20.291] [info] Created directory: C:\AI\models\configs
[2025-06-12 19:00:20.292] [info] Created directory: C:\AI\models\controlnet
[2025-06-12 19:00:20.292] [info] Created directory: C:\AI\models\diffusers
[2025-06-12 19:00:20.292] [info] Created directory: C:\AI\models\diffusion_models
[2025-06-12 19:00:20.293] [info] Created directory: C:\AI\models\embeddings
[2025-06-12 19:00:20.293] [info] Created directory: C:\AI\models\gligen
[2025-06-12 19:00:20.293] [info] Created directory: C:\AI\models\hypernetworks
[2025-06-12 19:00:20.293] [info] Created directory: C:\AI\models\loras
[2025-06-12 19:00:20.294] [info] Created directory: C:\AI\models\photomaker
[2025-06-12 19:00:20.294] [info] Created directory: C:\AI\models\style_models
[2025-06-12 19:00:20.294] [info] Created directory: C:\AI\models\text_encoders
[2025-06-12 19:00:20.294] [info] Created directory: C:\AI\models\unet
[2025-06-12 19:00:20.295] [info] Created directory: C:\AI\models\upscale_models
[2025-06-12 19:00:20.295] [info] Created directory: C:\AI\models\vae
[2025-06-12 19:00:20.295] [info] Created directory: C:\AI\models\vae_approx
[2025-06-12 19:00:20.295] [info] Created directory: C:\AI\models\animatediff_models
[2025-06-12 19:00:20.296] [info] Created directory: C:\AI\models\animatediff_motion_lora
[2025-06-12 19:00:20.296] [info] Created directory: C:\AI\models\animatediff_video_formats
[2025-06-12 19:00:20.296] [info] Created directory: C:\AI\models\liveportrait
[2025-06-12 19:00:20.297] [info] Created directory: C:\AI\models\insightface
[2025-06-12 19:00:20.297] [info] Created directory: C:\AI\models\insightface\buffalo_1
[2025-06-12 19:00:20.297] [info] Created directory: C:\AI\models\blip
[2025-06-12 19:00:20.297] [info] Created directory: C:\AI\models\blip\checkpoints
[2025-06-12 19:00:20.298] [info] Created directory: C:\AI\models\CogVideo
[2025-06-12 19:00:20.298] [info] Created directory: C:\AI\models\xlabs
[2025-06-12 19:00:20.298] [info] Created directory: C:\AI\models\xlabs\loras
[2025-06-12 19:00:20.298] [info] Created directory: C:\AI\models\xlabs\controlnets
[2025-06-12 19:00:20.299] [info] Created directory: C:\AI\models\layerstyle
[2025-06-12 19:00:20.299] [info] Created directory: C:\AI\models\LLM
[2025-06-12 19:00:20.299] [info] Created directory: C:\AI\models\Joy_caption
[2025-06-12 19:00:20.301] [info] Settings file C:\AI\user\default\comfy.settings.json does not exist. Using default settings.
[2025-06-12 19:00:20.302] [info] Wrote install options to comfy settings file.
[2025-06-12 19:00:20.303] [info] Creating model config files in C:\Users\Nino\AppData\Roaming\ComfyUI\extra_models_config.yaml
[2025-06-12 19:00:20.305] [info] Created extra_model_paths.yaml at C:\Users\Nino\AppData\Roaming\ComfyUI\extra_models_config.yaml
[2025-06-12 19:00:20.306] [info] Using uv at C:\Users\Nino\AppData\Local\Programs\@comfyorgcomfyui-electron\resources\uv\win\uv.exe
[2025-06-12 19:00:20.307] [info] Creating virtual environment at C:\AI\.venv with python 3.12
[2025-06-12 19:00:20.307] [info] Running uv command: & "C:\Users\Nino\AppData\Local\Programs\@comfyorgcomfyui-electron\resources\uv\win\uv.exe" "venv" "--python" "3.12" "--python-preference" "only-managed"
[2025-06-12 19:00:20.354] [info] Received renderer-ready message!
[2025-06-12 19:00:20.354] [info] Sending queued message {"channel":"loading-progress","data":{"status":"python-setup"}}
[2025-06-12 19:00:20.360] [info]
[2025-06-12 19:00:20.398] [info] Windows PowerShell
Copyright (C) Microsoft Corporation. Tous droits réservés.Installez la dernière version de PowerShell pour de nouvelles fonctionnalités et améliorations ! https://aka.ms/PSWindowse]0;C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe
[2025-06-12 19:00:20.406] [info]
[2025-06-12 19:00:20.952] [info] e]0;C:\WINDOWS\System32\WindowsPowerShell\v1.0\powershell.exe
[2025-06-12 19:00:20.961] [info] e]0;C:\Work - PowerShell 5.1 (22836)
[2025-06-12 19:00:20.969] [info] C:\Work>
[2025-06-12 19:00:21.022] [info]
[2025-06-12 19:00:21.030] [info] & "C:\Users\Nino\AppData\Local\Programs\@comfyorgcomfyui-electron\resources\uv\win\uv.exe" "venv" "--python" "3.12" "--python-preference" "only-managed"
[2025-06-12 19:00:21.039] [info] Using
[2025-06-12 19:00:21.049] [info] CPython 3.12.9
Creating virtual environment at: .venv
Activate with: .venv\Scripts\activate
[2025-06-12 19:00:21.057] [info]
[2025-06-12 19:00:21.066] [info] C:\Work> echo "_-end-1749747620308:$?"
[2025-06-12 19:00:21.075] [info] _-end-1749747620308:True
[2025-06-12 19:00:21.076] [info] Running command: C:\AI\.venv\Scripts\python.exe -m ensurepip --upgrade in C:\AI
[2025-06-12 19:00:21.086] [error] Error creating virtual environment: Error: spawn C:\AI\.venv\Scripts\python.exe ENOENT
at ChildProcess._handle.onexit (node:internal/child_process:286:19)
at onErrorNT (node:internal/child_process:484:16)
at process.processTicksAndRejections (node:internal/process/task_queues:82:21)
[2025-06-12 19:02:27.279] [info] App window closed.
[2025-06-12 19:02:27.306] [info] Quitting ComfyUI because window all closed
[2025-06-12 19:02:36.458] [info] Starting app v0.4.51