[Bug]: ComfyUI Desktop Version Unstable on macOS 15.3

[DoffeBupt]

App Version

Description

The ComfyUI desktop version appears to have stability issues on macOS. After attempting to create a virtual environment and initialize the application, the process hangs or fails unexpectedly. This issue is reproducible with the following steps and seems to occur consistently.

Environment
• OS: macOS (Apple Silicon, M4 Max chip)
• Python Version: CPython 3.12.4
• ComfyUI Version: Desktop Edition (latest available as of 2024-12-25) (ComfyUI 0.4.2 - Build 241221fp3hq46zr-arm64)
• Terminal: iTerm2

Expected Behavior

The application should complete initialization, launch the interface, and function without errors.

Actual Behavior

The logs show a successful virtual environment creation (.venv), but the application hangs during startup.
•	Relevant log snippet:

Creating virtual environment
at: .venv
Activate with: source .venv/bin/activate
@todesktop/runtime: alwaysResolve: Promise timed out after 30000ms
@todesktop/runtime: skipping autoUpdater initialization because the build isn't released.

Steps to Reproduce

1.	Download and install the ComfyUI desktop version from the official release page.
2.	Launch the application. It initializes a virtual environment using Python 3.12.4.
3.	The terminal output indicates the virtual environment creation completes successfully, but the application does not proceed as expected. It hangs or times out.

Debug Logs

cpython-3.12.4-macos-aarch64-none ------------------------------ 15.73 MiB/15.73 MiB
Using CPython 3.12.4
Creating virtual environment 
at: .venv

Activate with: source .venv/bin/activate

@todesktop/runtime: alwaysResolve: Promise timed out after 30000ms
@todesktop/runtime: skipping autoUpdater initialization because the build isn't released.

Browser Logs

Unable to get

Setting JSON

Unable to get

Other

No response

┆Issue is synchronized with this Notion page by Unito

[DoffeBupt]

comfyui.log
main.log
here're 2 logs

[robinjhuang]

Hey can you try reinstalling with the latest version?

[lakshyaag]

Same issue with latest version

[webfiltered]

@lakshyaag If you're experiencing the exact same issue, with the exact same logs, your venv is empty. The quick fix for this is to remove the .venv directory (from inside the dir you installed Comfy to) and reload the app.

That will force it to re-download python packages and create the venv again. You can also just manually add the packages with pip, if you're comfortable doing that.

[osilviotti]

I had the same issue, I think it was caused by installation script exiting early (at the point of echo "_-end-1737048462145:$?") because my logfile was complaining about yaml not being installed - it looks like yours is doing the same based on the files you uploaded @DoffeBupt

I've got it running now by doing the following (replace the initial cd with the path you set up in the installation process)

cd /Users/osilviotti/Documents/ComfyUI
source .venv/bin/activate
uv pip install -r /Applications/ComfyUI.app/Contents/Resources/ComfyUI/requirements.txt