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Comfyui Updates #4

@scofano

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@scofano

Hi, I'm a noob but I noticed this:

...
browser_use installed.
FETCH ComfyRegistry Data: 20/83
Playwright browsers installed.
Please 'pip install xformers'
Nvidia APEX normalization not installed, using PyTorch LayerNorm
Currently enabled native sdp backends: ['flash', 'math', 'mem_efficient', 'cudnn']
Xformers is not installed!
Flash Attn is not installed!
Sage Attn is installed!

I tried to install xformers but even telling me it is installed, I can't get rid of this warning.
I'm using .\python_embeded\python.exe -s -m pip install xformers
is it correct?

And, how can I install flash attention?

Nvidia APEX normalization not installed, using PyTorch LayerNorm
(how can I fix that?)

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