Error installing UI

[syrusfem]

After cloned the UI , launching the command: python OnnxDiffusersUI\onnxUI.py
i receive the following error message:
"
File "H:\Stable-Diffusion-ONNX-FP16\OnnxDiffusersUI\onnxUI.py", line 14, in
from diffusers import (
ImportError: cannot import name 'OnnxStableDiffusionInpaintPipelineLegacy' from 'diffusers' (H:\Stable-Diffusion-ONNX-FP16\sd_env\lib\site-packages\diffusers_init_.py)
"

i tried reinstalling all , verified all dependencies and so on, when i run the command python OnnxDiffusersUI\onnxUI.py i receive the same message. there is someone that could pont me to some workaround?