ImportError: cannot import name 'safety_check' from 'app'

[CRCODE22]

(sana) K:\Sana>python app\app_sana.py --config configs\sana_config\1024ms\Sana_1600M_img1024.yaml --model_path Efficient-Large-Model\Sana_1600M_1024px\checkpoints\Sana_1600M_1024px.pth
Traceback (most recent call last):
File "K:\Sana\app\app_sana.py", line 34, in
from app import safety_check
ImportError: cannot import name 'safety_check' from 'app' (e:\anaconda3\envs\sana\lib\site-packages\app_init_.py)

[lawrence-cj]

Have you followed the env installation step by step?