kijai
WanVideoSampler AttributeError: type object 'CompiledKernel' has no attribute 'launch_enter_hook'
found this, I noticed my torch version is too low: Triton 3.4 only works with PyTorch >= 2.8.
pip install -U "triton-windows<3.4" assuming your on torch 2.7 + if lower check the docs for correct version
pip install -U "triton-windows<3.4" assuming your on torch 2.7 + if lower check the docs for correct version
I have torch 2.7.0+cu128 and triton-windows 3.3.1post19 but still got an error
使用pip安装 -U "triton-windows<3.4"，假设你使用的是torch 2.7 + 如果版本更低，请查看文档以获取正确版本。
我有 torch 2.7.0+cu128 和 triton-windows 3.3.1post19 但仍然出现了一个错误
是不是fp8e4nv报错，说不支持。
使用pip安装 -U "triton-windows<3.4"，假设你使用的是torch 2.7 + 如果版本更低，请查看文档以获取正确版本。
我有 torch 2.7.0+cu128 和 triton-windows 3.3.1post19 但仍然出现了一个错误
是不是fp8e4nv报错，说不支持。
Sorry, I don't know what is fp8e4nv. And that's why I assume that no - it does not throw such error.
My case was a bit messy. I have both Python 3.10 and 3.12 and comfy-desktop. I kept getting this error despite all the efforts to install and reinstall triton.
Then I reinstalled comfy ui in a separate folder.
For some reason, I couldn't install triton into .venv of fresh comfy (in console it said its already installed, but in fact it was not).
All the problems ended up when I just copied folders triton and triton-windows from
C:\Users\my_user\AppData\Roaming\Python\Python312\site-packages to .venv folder of fresh comfyUI
Downgrading worked for me too, thanks! For the people using ComfyUI portable:
comfyui-portable-folder\python_embeded>python.exe -m pip install -U "triton-windows<3.4"
Downgrading worked for me too, thanks! For the people using ComfyUI portable:
comfyui-portable-folder\python_embeded>python.exe -m pip install -U "triton-windows<3.4"
I've run this but still receive the same error. I doubt that triton gets properly installed in my comfyui portable, because when i run the order: python.exe -m pip uninstall triton, I receive : WARNING: Skipping triton as it is not installed.
Downgrading worked for me too, thanks! For the people using ComfyUI portable:
comfyui-portable-folder\python_embeded>python.exe -m pip install -U "triton-windows<3.4"I've run this but still receive the same error. I doubt that triton gets properly installed in my comfyui portable, because when i run the order: python.exe -m pip uninstall triton, I receive : WARNING: Skipping triton as it is not installed.
(Drive letter)D:\ComfyUI_windows_portable\python_embeded\python.exe -m install -U "triton-windows<3.4"
One thing to note is that Triton seems to have a very different reference to the environment. Try to specify the correct address of Python when installing. If that doesn't work, try to reference the Python environment of the portable package into the system variable
Downgrading worked for me too, thanks! For the people using ComfyUI portable:
comfyui-portable-folder\python_embeded>python.exe -m pip install -U "triton-windows<3.4"
Works form me, many thx!
downgrade triton worked for me
how i can know what version of triton i have and what version to downgrade i should choose?
downgrade triton worked for me
what version downgrade to?
how can i downgrade my triton? can you explain how i can findout which version to downgrade?
I tried everything I saw and nothing worked... But
I SOLVED IT with Torch 2.6 and Triton 3.2—it’s more stable.
Step1 pip uninstall -y torch triton triton-windows
Step2 pip install torch==2.6.0 --force-reinstall
Step3 pip install "triton-windows==3.2.0.post19" --force-reinstall
t
pip install -U "triton-windows<3.4" assuming your on torch 2.7 + if lower check the docs for correct version
Thank it work for me..
brianb5010
降级也对我有用，谢谢！致使用 ComfyUI 便携版的用户：
comfyui-portable-folder\python_embeded>python.exe -m pip install -U "triton-windows<3.4"
感谢对我很有用,在此之前我问了无数次ai但是都没有解决问题。尝试了环境变量的增加修改，更新了C++编译器。cuda降级等一系列问题。我也不知道是不是在做这些前提的情况下才能降级成功的。总之很感谢您！作者这个问题可以在环境变量中增加+dynamo变量可以在ai中查到。
downgrade triton worked for me
what version downgrade to?
how can i downgrade my triton? can you explain how i can findout which version to downgrade?
Check this
