comfyui-BrushNet"The import failed"

[lwq58]

Traceback (most recent call last):
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\diffusers\utils\import_utils.py", line 820, in get_module
return importlib.import_module("." + module_name, self.name)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "importlib_init.py", line 90, in import_module
File "", line 1387, in _gcd_import
File "", line 1360, in _find_and_load
File "", line 1331, in _find_and_load_unlocked
File "", line 935, in _load_unlocked
File "", line 999, in exec_module
File "", line 488, in _call_with_frames_removed
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\diffusers\loaders\peft.py", line 38, in
from .lora_base import fetch_state_dict, func_optionally_disable_offloading
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\diffusers\loaders\lora_base.py", line 56, in
from peft.tuners.tuners_utils import BaseTunerLayer
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\peft_init.py", line 17, in
from .auto import (
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\peft\auto.py", line 31, in
from .config import PeftConfig
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\peft\config.py", line 24, in
from .utils import CONFIG_NAME, PeftType, TaskType
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\peft\utils_init.py", line 16, in
from .loftq_utils import replace_lora_weights_loftq
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\peft\utils\loftq_utils.py", line 25, in
from accelerate.utils.memory import clear_device_cache
ImportError: cannot import name 'clear_device_cache' from 'accelerate.utils.memory' (D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\accelerate\utils\memory.py)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "D:\comfyui\ComfyUI_windows_portable\ComfyUI\nodes.py", line 2128, in load_custom_node
module_spec.loader.exec_module(module)
File "", line 999, in exec_module
File "", line 488, in call_with_frames_removed
File "D:\comfyui\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-brushnet_init.py", line 1, in
from .brushnet_nodes import BrushNetLoader, BrushNet, BlendInpaint, PowerPaintCLIPLoader, PowerPaint, CutForInpaint
File "D:\comfyui\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-brushnet\brushnet_nodes.py", line 15, in
from .brushnet.brushnet import BrushNetModel
File "D:\comfyui\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-brushnet\brushnet\brushnet.py", line 20, in
from .unet_2d_blocks import (
File "D:\comfyui\ComfyUI_windows_portable\ComfyUI\custom_nodes\comfyui-brushnet\brushnet\unet_2d_blocks.py", line 36, in
from diffusers.models.transformers.dual_transformer_2d import DualTransformer2DModel
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\diffusers\models\transformers_init_.py", line 6, in
from .cogvideox_transformer_3d import CogVideoXTransformer3DModel
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\diffusers\models\transformers\cogvideox_transformer_3d.py", line 22, in
from ...loaders import PeftAdapterMixin
File "", line 1412, in _handle_fromlist
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\diffusers\utils\import_utils.py", line 810, in getattr
module = self._get_module(self._class_to_module[name])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\diffusers\utils\import_utils.py", line 822, in _get_module
raise RuntimeError(
RuntimeError: Failed to import diffusers.loaders.peft because of the following error (look up to see its traceback):
cannot import name 'clear_device_cache' from 'accelerate.utils.memory' (D:\comfyui\ComfyUI_windows_portable\python_embeded\Lib\site-packages\accelerate\utils\memory.py)

[annkss]

我也是遇到了同样的问题，不知道怎么解决

[RiggTIan]

根据错误信息，这个问题是由于accelerate库中缺少clear_device_cache方法引起的。这通常是因为库版本不兼容导致的。以下是解决方法：

升级accelerate库：
这个错误通常是由于accelerate版本过低导致。请尝试用ComfyUI的嵌入式Python环境执行以下命令：

bash
D:\StableDiffusion\ComfyUI\python_embeded\python.exe -m pip install accelerate --upgrade
同时升级diffusers库：
由于错误链涉及diffusers和peft，建议也升级其他相关库：

bash
D:\StableDiffusion\ComfyUI\python_embeded\python.exe -m pip install diffusers peft --upgrade
验证版本兼容性：
确保以下库满足最低版本要求：

accelerate >= 0.20.0 (clear_device_cache在此版本引入)

diffusers >= 0.22.0

peft >= 0.6.0

清理安装缓存：
如果升级后仍存在问题，可以尝试：

bash

D:\StableDiffusion\ComfyUI\python_embeded\python.exe -m pip cache purge
D:\StableDiffusion\ComfyUI\python_embeded\python.exe -m pip uninstall accelerate diffusers peft -y
D:\StableDiffusion\ComfyUI\python_embeded\python.exe -m pip install accelerate diffusers peft --force-reinstall

检查依赖冲突：
如果问题仍然存在，可能是由于其他依赖项版本冲突。建议：

bash
D:\StableDiffusion\ComfyUI\python_embeded\python.exe -m pip install "accelerate>=0.20.0" "diffusers>=0.22.0" "peft>=0.6.0" "torch>=2.0.1" --upgrade --force-reinstall
如果以上步骤仍未解决问题，建议：

检查BrushNet的官方文档是否有特殊版本要求

在ComfyUI管理器中尝试通过"Install Missing Custom Nodes"功能自动修复依赖

联系BrushNet的开发者提交issue，附上完整错误日志

注意：请确保所有命令都使用ComfyUI自带的Python环境执行（路径中包含python_embeded的python.exe），不要使用系统全局Python环境。

[adriaesteve]

pip install diffusers==0.29.0

[iampd]

pip install diffusers==0.29.0

great

[xinliangji]

pip install diffusers==0.29.0

it works，thanks