After installing and opening ComfyUI, I get the following error:
Was not able to start ComfyUI. Please check the logs for more details. You can open it from the Help menu. Please report issues to: https://forum.comfy.org
There is no help menu because it simply doesn’t load anything.
Sorry, can you try the instructions here? Please email the logs to support@comfy.org
The instructions… Where? I’d love to try them.
Here!
same problem.after this,i del the folder and reinstall,it only show this window.
Same error screen for me. It tells us to read the log file under the Help menu, but there IS no Help menu.
ComfyUI opened fine when I first installed it. But after opening one of my existing workflows and installing 18 different custom nodes, I now get this screen. And since I have no access to the log, I have no idea which node might be causing the problem.
After restarting the app a second time, I was able to get into ComfyUI. Unfortunately, not all of the custom nodes I had chosen to install WERE installed. Several were still missing. Normally, I would just jump back into the Manager and try to install them again. But now, I’m missing the Manager button. It’s just gone. 
Having a same issue here. No help menu or nothing. just like that screen shot. I followed the notion instruction but there was nothing really to follow. All I did was to download ComfyUi V1 and install it. I changed the default install path. That was all.
The error message showed after Python environment set up message.
Uninstalled and reinstalled. Same issue.
Google says support@comfy.org does not exist. What?
Having the same issue, what I did was:
Installed into a custom directory, realized the directory was nested so I uninstalled comfyui and tried to reinstall again with the same installer (into a different directory)… and now all I get is this screen. So no matter how I try to uninstall it, I can no longer install it. There must be a registry setting or a setting somewhere not allowing the install directory to reset.
edit:
Now everytime I try to uninstall and reinstall with the same installer, it doesn’t ask me where to install to, it automatically tries to install into C:\Users<UserName>\AppData\Local\Programs@comfyorgcomfyui-electron, and I can see files inside that directory, and get the same screen by running comfyui.exe in that directory, so again, probably a registry or setting somewhere not getting reset.
edit:
Ok, fixed it by reading what another user wrote in one of the other threads related to this one.
Please point to the solution ?
I don’t know if this is the solution for you, but it pointed me in the right direction.
The post by NStor about how the ComfyUI does it’s install structure.
This remains an issue for people who’s system drive is not the installation drive.
I downloaded the node package and extracted it directly from the node directory, put it in \ComfyUI\ComfyUI\custom_nodes, and when I started it, it said “can’t start”. After I removed the node installed in unzipped mode, restarting it restored.
I have the same problem. I can not get Comfyui working. I tried some things i read here around but they did not work. Maybe i have not done some things right but installing a software shouldn’t be such a problem. It is Beta of course. Hopefully waiting for another build.
The last two lines of the log file are like this:
[2024-11-26 16:21:06.672] [info] Running uv command: C:\Users\kadri\AppData\Local\Programs@comfyorgcomfyui-electron\resources\uv\win\uv.exe venv --python 3.12.4
[2024-11-26 16:21:06.682] [error] Error creating virtual environment: Error: File not found:
Looks like a kind of Python install problem? I have Windows 11.
Thanks for reporting this. Does that file exist? We create a virtual environment for you but seems like it’s running into some issues
C:\Users\kadri\AppData\Local\Programs@comfyorgcomfyui-electron\resources\uv\win\uv.exe
same here. WTH?
main.zip (3.8 KB)
This file is from here
“c:\Users\kadri\AppData\Roaming\ComfyUI\logs>”
I hope this is the one you need. This file looks bigger then i saw earlier. Maybe because of my reinstalling attempts but the same line is still there.
If you want anything more glad to help. Thanks.
Just curious wouldn’t be something like a portable version, where everything is in a compact folder easier to build? For you and for the users? It looks too complicated as it is for now…to me at least.
I just tried v.0318. still no luck with the installation and now it says:
“ComfyUI requires an NVIDIA GPU on Windows. No NVIDIA GPU was detected.”
I have a Nvidia RTX 3060.
Working on automated report tools to make this less manual for everyone, but if you’re in a rush:
If you run this, does NVIDIA appear in any of the output? If so, which column?
wmic PATH Win32_VideoController
p.s. The lines will be very long and wrapped - I find it easiest to run wmic from Windows Terminal and copy/paste into an editor like vscode, with wrap off. Can then side scroll through the results with the column headers lined up properly.