Cache-Dit Accelerator error

[theaorora]

Prompt executed in 150.82 seconds
got prompt
[CacheDiT] ✗ Failed to enable cache: No module named 'cache_dit'
Traceback (most recent call last):
File "D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\nodes.py", line 585, in _enable_cache_dit
import cache_dit
ModuleNotFoundError: No module named 'cache_dit'
[CacheDiT] outer_sample_wrapper error: No module named 'cache_dit'
Traceback (most recent call last):
File "D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\nodes.py", line 465, in _cache_dit_outer_sample_wrapper
_enable_cache_dit(transformer, config)
~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^
File "D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\nodes.py", line 585, in _enable_cache_dit
import cache_dit
ModuleNotFoundError: No module named 'cache_dit'

[DannyDsds]

I have the sme issue.

[GalaxyTimeMachine]

Did you install the requirements.txt? Portable version should use: D:\COMFY\python_embeded\python.exe -m pip install -r D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\requirements.txt

[DannyDsds]

Did you install the requirements.txt? Portable version should use: D:\COMFY\python_embeded\python.exe -m pip install -r D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\requirements.txt

I've done this one:
D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\requirements.txt

But what is this one for?:
D:\COMFY\python_embeded\python.exe -m pip install -r

[GalaxyTimeMachine]

Did you install the requirements.txt? Portable version should use: D:\COMFY\python_embeded\python.exe -m pip install -r D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\requirements.txt

I've done this one: D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\requirements.txt

But what is this one for?: D:\COMFY\python_embeded\python.exe -m pip install -r

That command is all one line. They won't do anything running them separately.

[theaorora]

Did you install the requirements.txt? Portable version should use: D:\COMFY\python_embeded\python.exe -m pip install -r D:\COMFY\ComfyUI\custom_nodes\ComfyUI-CacheDiT\requirements.txt

I’ve already tested this. When I use WAN Cache DiT, there are no issues. The errors only occur with Qwen, Z-Image, and other cache DiT accelerators.”

[Jubien31]

When following the current installation tutorial, pip detects the torch>=2.7 requirement and forces a PyTorch upgrade, which breaks the existing ComfyUI installation.

As a result, simply following the install guide can leave ComfyUI in a broken state.

The problem comes from a PyTorch version mismatch.

ComfyUI currently relies on a stable PyTorch release (2.6.0), while this node (ComfyUI-CacheDiT) and its dependency cache-dit are very recent and experimental, requiring a Nightly/Beta version of PyTorch (2.7.1).

The only workaround at the moment is to force-install cache-dit while ignoring the PyTorch version requirement, hoping it still works with PyTorch 2.6.0.

This dependency conflict makes the installation unsafe and confusing for ComfyUI users.
can you check this point please ?

[GalaxyTimeMachine]

ComfyUI doesn't rely on pytorch 2.6.0. I've always upgraded to the latest version, and currently use pytorch version: 2.10.0+cu130 with no issues whatsoever. Comfy even has this warning built in: ("WARNING: You need pytorch with cu130 or higher to use optimized CUDA operations."), which means pytorch 2.9.0 or above should be used.
Maybe it's time you upgraded?

Edit: This was added to the readme too - torch 2.4 and above is supported but some features might only work on newer versions. We generally recommend using the latest major version of pytorch unless it is less than 2 weeks old.