LCM_Inpaint_Outpaint_Comfy导入失败，提示cannot import name ‘CrossAttnDownBlock2D’ from ‘diffusers.models.unets.unet_2d_condition’的解决办法

之前我已经写过一篇文章来解决No module named ‘diffusers.models.unet_2d_blocks’的问题，具体参考如下

【完美解决】ComfyUI工作流报错：No module named ‘diffusers.models.unet_2d_blocks’的解决办法！

3天前

0

但是，随着diffusers的更新，在使用插件LCM_Inpaint_Outpaint_Comfy时，又遇到了新的问题，找不到 CrossAttnDownBlock2D 和 CrossAttnUpBlock2D，导入失败，日志报错：

from diffusers.models.unets.unet_2d_condition import UNet2DConditionModel,CrossAttnDownBlock2D, CrossAttnUpBlock2D, DownBlock2D, UpBlock2D
ImportError: cannot import name 'CrossAttnDownBlock2D' from 'diffusers.models.unets.unet_2d_condition'

这个问题的解决方式跟之前类似，原因也大致相同，只需将custom_nodes\LCM_Inpaint_Outpaint_Comfy\LCM\LCM_reference_pipeline.py文件中下面的代码，大致在37行

from diffusers.models.unets.unet_2d_condition import UNet2DConditionModel,CrossAttnDownBlock2D, CrossAttnUpBlock2D, DownBlock2D, UpBlock2D

修改为

from diffusers.models.unets.unet_2d_blocks import CrossAttnDownBlock2D, CrossAttnUpBlock2D, DownBlock2D, UpBlock2D
from diffusers.models.unets.unet_2d_condition import UNet2DConditionModel

修改完成后保存，然后重启comfyui，即可正常导入LCM_Inpaint_Outpaint_Comfy！