ModuleNotFoundError: No module named 'prim3d'

[small-zeng]

using scene_id: 0616_00 train_suffix: 0616_00_pretrained vis_suffix: 0616_00_pretrained mvs_suffix: mvs **kwargs: --casting
Traceback (most recent call last):
File "scripts/train_pretrained.py", line 17, in
from scripts.generate_normal import ray_casting_depth_normal
File "/mnt/dataset/zengjing/HelixSurf/scripts/generate_normal.py", line 9, in
import prim3d
ModuleNotFoundError: No module named 'prim3d'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "scripts/train_pretrained.py", line 19, in
from generate_normal import ray_casting_depth_normal
File "/mnt/dataset/zengjing/HelixSurf/scripts/generate_normal.py", line 9, in
import prim3d
ModuleNotFoundError: No module named 'prim3d'

[small-zeng]

When I run this code, the error occur, how to fix it?