[GH-ISSUE #2556] [ComfyUI-Manager] Installation failed: ModuleNotFoundError: No module named 'comfy' #992

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opened 2026-10-27 21:24:50 +00:00 by bsakaguchi · 1 comment

bsakaguchi commented

2026-10-27 21:24:50 +00:00

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Originally created by @tobiaswuerth on GitHub (Jan 29, 2026).
Original GitHub issue: https://github.com/Comfy-Org/ComfyUI-Manager/issues/2556

Installing a node pack extension doesn't work.
I just updated to version 0.11.1

Logs show this:

FETCH DATA from: C:\...\ComfyUI\.venv\Lib\site-packages\comfyui_manager\custom-node-list.json [DONE]
Download: git clone 'https://github.com/evanspearman/ComfyMath'
[!] Traceback (most recent call last):
[!]   File "C:\...\ComfyUI\.venv\Lib\site-packages\comfyui_manager\common\git_helper.py", line 12, in <module>
[!]     from comfyui_manager.common.timestamp_utils import get_backup_branch_name
[!]   File "C:\...\ComfyUI\.venv\Lib\site-packages\comfyui_manager\__init__.py", line 6, in <module>
[!]     from comfy.cli_args import args
[!] ModuleNotFoundError: No module named 'comfy'
[ComfyUI-Manager] Installation failed:
Failed to clone repo: https://github.com/evanspearman/ComfyMath

After restarting ComfyUI, please refresh the browser.

It happens for all packages I tried.

Platform: Windows
Python version: 3.12.9 
Total VRAM 24564 MB, total RAM 196363 MB
pytorch version: 2.8.0+cu129
Device: cuda:0 NVIDIA GeForce RTX 4090
ComfyUI version: 0.10.0

(ComfyUI) PS C:\...\ComfyUI> pip3 install comfyui_manager --upgrade
Requirement already satisfied: comfyui_manager in c:\users\tobias\documents\comfyui\.venv\lib\site-packages (4.0.5)

Originally created by @tobiaswuerth on GitHub (Jan 29, 2026). Original GitHub issue: https://github.com/Comfy-Org/ComfyUI-Manager/issues/2556 Installing a node pack extension doesn't work. I just updated to version 0.11.1 Logs show this: ``` FETCH DATA from: C:\...\ComfyUI\.venv\Lib\site-packages\comfyui_manager\custom-node-list.json [DONE] Download: git clone 'https://github.com/evanspearman/ComfyMath' [!] Traceback (most recent call last): [!] File "C:\...\ComfyUI\.venv\Lib\site-packages\comfyui_manager\common\git_helper.py", line 12, in <module> [!] from comfyui_manager.common.timestamp_utils import get_backup_branch_name [!] File "C:\...\ComfyUI\.venv\Lib\site-packages\comfyui_manager\__init__.py", line 6, in <module> [!] from comfy.cli_args import args [!] ModuleNotFoundError: No module named 'comfy' [ComfyUI-Manager] Installation failed: Failed to clone repo: https://github.com/evanspearman/ComfyMath After restarting ComfyUI, please refresh the browser. ``` It happens for all packages I tried. ``` Platform: Windows Python version: 3.12.9 Total VRAM 24564 MB, total RAM 196363 MB pytorch version: 2.8.0+cu129 Device: cuda:0 NVIDIA GeForce RTX 4090 ComfyUI version: 0.10.0 ``` ``` (ComfyUI) PS C:\...\ComfyUI> pip3 install comfyui_manager --upgrade Requirement already satisfied: comfyui_manager in c:\users\tobias\documents\comfyui\.venv\lib\site-packages (4.0.5) ```

bsakaguchi commented

2026-10-27 21:24:50 +00:00

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@AG31447 commented on GitHub (Feb 25, 2026):

It's 2026, a ton of extensions still fail to install in this exact same way. What the hell is the problem?

@AG31447 commented on GitHub (Feb 25, 2026): It's 2026, a ton of extensions still fail to install in this exact same way. What the hell is the problem?