I can't install the Comfy plugin on Krita

[sbatorg1973guro]

Error: Error during installation: Using Python 3.12.11 environment at: venv error^ Falled to fetch: https://download.pytorch.org/whl/cu128/torchaudio/
caused by: error decoding response body
Caused by:request or response body error
Caused by:error reading a body from connection
Caused by: connection reset

[jeroll3d]

This message sometimes appears here as well. It seems to be an issue with the installer that crashes Krita, the installation window, causing templates to arrive broken, missing a part to complete them. The download bar simply freezes, and if you check where the template is installed, it appears smaller than the actual template downloaded directly from the website.

[sbatorg1973guro]

Hi! Thanks, at least someone responded. Can you suggest something about this problem I'm having? I haven't had any installation issues before.

[sbatorg1973guro]

Please help me with this. I've already installed Krita ai Diffusion without any problems, but I can't do it this time

[sbatorg1973guro]

2025-09-27 15:47:40,054 ERROR Installation failed
2025-09-27 15:47:40,054 INFO Found server installation vincomplete at C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server
2025-09-27 18:15:43,162 INFO Loaded 12 sampler presets from C:\Users\Bator\AppData\Roaming\krita\pykrita\ai_diffusion\presets\samplers.json
2025-09-27 18:15:43,186 INFO Extension initialized, Version: 1.39.2, Python: 3.10.7 (tags/v3.10.7:6cc6b13, Sep 5 2022, 14:08:36) [MSC v.1933 64 bit (AMD64)]
2025-09-27 18:15:43,186 INFO Loading settings from C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\settings.json
2025-09-27 18:15:43,187 INFO Found server installation vincomplete at C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server
2025-09-27 18:15:43,327 INFO Checking for latest plugin version at https://api.interstice.cloud
2025-09-27 18:15:44,765 INFO Plugin is up to date!
2025-09-27 18:33:15,781 INFO Found server installation vincomplete at C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server
2025-09-27 18:33:23,949 INFO Found server installation vincomplete at C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server
2025-09-27 18:33:36,117 INFO Installation started in C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server
2025-09-27 18:33:36,402 INFO Using uv: uv 0.8.12 (36151df0e 2025-08-18)
2025-09-27 18:33:36,682 INFO Using Python: Python 3.12.11, C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server\venv\Scripts\python.exe
2025-09-27 18:33:36,964 INFO System locale encoding determined: cp1251
2025-09-27 18:33:36,965 INFO Using C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server.cache\ComfyUI-7139d6d93fc7b5481a69b687080bd36f7b531c46.zip
2025-09-27 18:33:36,965 INFO Extracting C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server.cache\ComfyUI-7139d6d93fc7b5481a69b687080bd36f7b531c46.zip to C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server
2025-09-27 18:33:37,192 INFO Executing C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server\uv\uv.exe pip install -U torch==2.8.0 torchvision==0.23.0 torchaudio==2.8.0 --index-url https://download.pytorch.org/whl/cu128
2025-09-27 18:34:08,628 ERROR Error during installation: Using Python 3.12.11 environment at: venv
error: Failed to fetch: https://download.pytorch.org/whl/cu128/torchaudio/
Caused by: error decoding response body
Caused by: request or response body error
Caused by: operation timed out
Traceback (most recent call last):
File "C:\Users\Bator\AppData\Roaming\krita\pykrita\ai_diffusion\server.py", line 352, in install
await self._install(cb)
File "C:\Users\Bator\AppData\Roaming\krita\pykrita\ai_diffusion\server.py", line 179, in _install
await try_install(comfy_dir, self._install_comfy, comfy_dir, network, cb)
File "C:\Users\Bator\AppData\Roaming\krita\pykrita\ai_diffusion\server.py", line 803, in try_install
raise e
File "C:\Users\Bator\AppData\Roaming\krita\pykrita\ai_diffusion\server.py", line 798, in try_install
await installer(*args)
File "C:\Users\Bator\AppData\Roaming\krita\pykrita\ai_diffusion\server.py", line 264, in _install_comfy
await self._pip_install("PyTorch", ["-U"] + torch_args, cb)
File "C:\Users\Bator\AppData\Roaming\krita\pykrita\ai_diffusion\server.py", line 792, in execute_process
raise Exception(("Error during installation") + f": {errlog}")
Exception: Error during installation: Using Python 3.12.11 environment at: venv
error: Failed to fetch: https://download.pytorch.org/whl/cu128/torchaudio/
Caused by: error decoding response body
Caused by: request or response body error
Caused by: operation timed out

2025-09-27 18:34:08,629 ERROR Installation failed
2025-09-27 18:34:08,629 INFO Found server installation vincomplete at C:\Users\Bator\AppData\Roaming\krita\ai_diffusion\server

[sbatorg1973guro]

Thank you very much, Akly!!! Your tip was very helpful. And I found the cause in the area you suggested. I narrowed my search to the internet connection and the PC. A connection test yielded no negative results. The cause was outdated Windows drivers. I reinstalled the operating system and updated the drivers. Thank you again. Before your tip, I was looking in the wrong place.