# \#legacy-version **URL:** https://forum.comfy.org/tag/legacy-version/23.md [Latest](https://forum.comfy.org/latest.md) · [Categories](https://forum.comfy.org/categories.md) · [Tags](https://forum.comfy.org/tags.md) --- ## [How am I supposed to use this](https://forum.comfy.org/t/how-am-i-supposed-to-use-this/4579)
**Author:** [@Flyinghook](https://forum.comfy.org/u/Flyinghook)\ **Replies:** 0\ **Last updated:** [August 16, 2026, 3:28am UTC](https://forum.comfy.org/t/how-am-i-supposed-to-use-this/4579 "2026-08-16T03:28:36Z")
I’m trying to use a custom main model and add loras. No matter what I try, I can’t get them to integrate. I’m completely new to this, and all the examples on the Internet just say, it’s easy, then show something complet… --- ## [Cannot install V0.24.0](https://forum.comfy.org/t/cannot-install-v0-24-0/4515)
**Author:** [@disciplesoffufkin](https://forum.comfy.org/u/disciplesoffufkin)\ **Replies:** 1\ **Last updated:** [June 12, 2026, 9:31pm UTC](https://forum.comfy.org/t/cannot-install-v0-24-0/4515 "2026-06-12T21:31:29Z")
I have been running comfyui for about 6 months now (it’s great). I have been updating to the recent version along the way. today I ran into an issue with a node that I installed (It was a video to text node with QWEN V… --- ## [Correct version of Nunchaku in ComfyUI?](https://forum.comfy.org/t/correct-version-of-nunchaku-in-comfyui/4512)
**Author:** [@joshifresa](https://forum.comfy.org/u/joshifresa)\ **Replies:** 0\ **Last updated:** [June 9, 2026, 11:09pm UTC](https://forum.comfy.org/t/correct-version-of-nunchaku-in-comfyui/4512 "2026-06-09T23:09:45Z")
Hi! I’m a bit new at using ComfyUI and currently learning. As I start ComfyUI I get this kind of error message as below, and according to what I read lately, it seems to be an issue of not having the right version of nun… --- ## [The latest ComfyUI Desktop for windows launch failed](https://forum.comfy.org/t/the-latest-comfyui-desktop-for-windows-launch-failed/4321)
**Author:** [@Ryota](https://forum.comfy.org/u/Ryota)\ **Replies:** 1\ **Last updated:** [March 15, 2026, 3:18pm UTC](https://forum.comfy.org/t/the-latest-comfyui-desktop-for-windows-launch-failed/4321 "2026-03-15T15:18:54Z")
2026-03-14 10:04:12.961\\\] \\\[info\\\] Validating installation. Recorded state: \\\[installed \[2026-03-14 10:04:12.963\] \[info\] Running uv command directly: pip install --dry-run -r D:\\Program Files\\ComfyUI\\resources\\ComfyU… --- ## [Mac ComfyUI Performance: Current Beta Limitations and Future GPU Acceleration Prospects](https://forum.comfy.org/t/mac-comfyui-performance-current-beta-limitations-and-future-gpu-acceleration-prospects/4296)
**Author:** [@Iamcaobin](https://forum.comfy.org/u/Iamcaobin)\ **Replies:** 2\ **Last updated:** [February 27, 2026, 12:30am UTC](https://forum.comfy.org/t/mac-comfyui-performance-current-beta-limitations-and-future-gpu-acceleration-prospects/4296 "2026-02-27T00:30:27Z")
Hello everyone, I am a MacBookPro user: M3Max+128G+8T. I know that the ComfyUI desktop version for Mac is still in beta, and I also know that Apple’s ARM-based chips use MPS and Metal to run and accelerate ComfyUI, but … --- ## [Regarding Start issues](https://forum.comfy.org/t/regarding-start-issues/2888)
**Author:** [@Adhii](https://forum.comfy.org/u/Adhii)\ **Replies:** 0\ **Last updated:** [June 19, 2025, 1:13pm UTC](https://forum.comfy.org/t/regarding-start-issues/2888 "2025-06-19T13:13:38Z")
Hey I’m a very new to ComfyUI I don’t know anything about it I just Unistalled it and due to some issues I’ve reinstalled it after installing all of the packages I’m unable to open it Idk why please give a reply mess… --- ## [V0.4.17 Can not install ComfyUI](https://forum.comfy.org/t/v0-4-17-can-not-install-comfyui/1331)
**Author:** [@angle\_xiaoxiang](https://forum.comfy.org/u/angle_xiaoxiang)\ **Replies:** 16\ **Last updated:** [February 16, 2025, 11:18am UTC](https://forum.comfy.org/t/v0-4-17-can-not-install-comfyui/1331 "2025-02-16T11:18:50Z")
\[2025-02-07 19:32:25.766\] \[info\] Received renderer-ready message! \[2025-02-07 19:32:25.767\] \[info\] Sending queued message loading-progress { status: ‘error’ } \[2025-02-07 19:32:25.769\] \[info\] Sending queued message… --- ## [4.18，does not start](https://forum.comfy.org/t/4-18-does-not-start/1495)
**Author:** [@ASTIN](https://forum.comfy.org/u/ASTIN)\ **Replies:** 1\ **Last updated:** [February 14, 2025, 1:20am UTC](https://forum.comfy.org/t/4-18-does-not-start/1495 "2025-02-14T01:20:27Z")
\[2025-02-14 05:34:34.389\] \[info\] Sending queued message loading-progress { status: ‘starting-server’ } \[2025-02-14 05:34:41.991\] \[error\] Python process exited with code 1 and signal null \[2025-02-14 05:34:41.992\] \[er… --- ## [An error occurred during installation.](https://forum.comfy.org/t/an-error-occurred-during-installation/1467)
**Author:** [@EarsSky](https://forum.comfy.org/u/EarsSky)\ **Replies:** 1\ **Last updated:** [February 12, 2025, 11:02pm UTC](https://forum.comfy.org/t/an-error-occurred-during-installation/1467 "2025-02-12T23:02:39Z")
--- ## [What is error code 103? And signal null](https://forum.comfy.org/t/what-is-error-code-103-and-signal-null/1199)
**Author:** [@shakiii](https://forum.comfy.org/u/shakiii)\ **Replies:** 0\ **Last updated:** [January 23, 2025, 11:17pm UTC](https://forum.comfy.org/t/what-is-error-code-103-and-signal-null/1199 "2025-01-23T23:17:22Z")
Plz help mee What is error code 103? And signal null --- ## [The latest ComfyUI cannot load SD1.5, how to solve it?](https://forum.comfy.org/t/the-latest-comfyui-cannot-load-sd1-5-how-to-solve-it/929)
**Author:** [@yanba109](https://forum.comfy.org/u/yanba109)\ **Replies:** 1\ **Last updated:** [December 27, 2024, 11:40pm UTC](https://forum.comfy.org/t/the-latest-comfyui-cannot-load-sd1-5-how-to-solve-it/929 "2024-12-27T23:40:37Z")
My computer is WIN11 system, the graphics card is 4090, and I installed the ComfyUI desktop version ComfyUI │ ├── models │ │ │ └── Stable-diffusion ← The directory where I store the Stable Diffusion model file │ │ … --- ## [Unable to start ComfyUI - Failed to create virtual environment](https://forum.comfy.org/t/unable-to-start-comfyui-failed-to-create-virtual-environment/386)
**Author:** [@koza](https://forum.comfy.org/u/koza)\ **Replies:** 0\ **Last updated:** [November 26, 2024, 8:51am UTC](https://forum.comfy.org/t/unable-to-start-comfyui-failed-to-create-virtual-environment/386 "2024-11-26T08:51:39Z")
After installing I get Unable to start ComfyUI on Windows 11 Pro. Tried to delete everything, uninstall and reinstall again with the same result. The log file ends like this: \[2024-11-26 10:41:39.082\] \[info\] e\[?25le\[… --- ## [App starts with white screen](https://forum.comfy.org/t/app-starts-with-white-screen/276)
**Author:** [@Rami](https://forum.comfy.org/u/Rami)\ **Replies:** 17\ **Last updated:** [November 26, 2024, 8:19pm UTC](https://forum.comfy.org/t/app-starts-with-white-screen/276 "2024-11-26T20:19:15Z")
After fresh install, launching the app only opens a white screen. Running on M4 Pro -macOS 15.1.1 --- ## [Torch not compiled with CUDA enabled & ECONNREFUSED 127.0.0.1:8000](https://forum.comfy.org/t/torch-not-compiled-with-cuda-enabled-econnrefused-127-0-0-1-8000/50)
**Author:** [@Karmamole](https://forum.comfy.org/u/Karmamole)\ **Replies:** 3\ **Last updated:** [November 10, 2024, 10:58pm UTC](https://forum.comfy.org/t/torch-not-compiled-with-cuda-enabled-econnrefused-127-0-0-1-8000/50 "2024-11-10T22:58:53Z")
File “C:\\Users\\Omar\\AppData\\Roaming\\Python\\Python312\\site-packages\\torch\\cuda\_init\_.py”, line 878, in current\_device lazy\_init() File "C:\\Users\\Omar\\AppData\\Roaming\\Python\\Python312\\site-packages\\torch\\cuda\_init.py", l… --- ## [Environment Variable-Related Issue: Unable to Start ComfyUI](https://forum.comfy.org/t/environment-variable-related-issue-unable-to-start-comfyui/40)
**Author:** [@Makki](https://forum.comfy.org/u/Makki)\ **Replies:** 1\ **Last updated:** [November 9, 2024, 9:51am UTC](https://forum.comfy.org/t/environment-variable-related-issue-unable-to-start-comfyui/40 "2024-11-09T09:51:07Z")
When the ‘http\_proxy’ in the environment variables is not set to NONE or http://127.0.0.1:8000, it cannot be started. I don’t know if this is a bug or a specific requirement. Below are the logs(It seems that I couldn’t…