undefined symbol: state

[qiji77]

Hello,first thanks for your codes,and when I run the test code I get an error like this.I don't know where is wrong
deep_cage$ python cage_deformer_3d.py --dataset SHAPENET --full_net --bottleneck_size 256 --n_fold 2 --ckpt trained_models/chair_ablation_full/net_final.pth --target_model data/shapenet_target/**/*.obj --source_model data/elaborated_chairs/throne_no_base.obj data/elaborated_chairs/Chaise_longue_noir_House_Doctor.ply --subdir fancy_chairs --phase test --is_poly
Traceback (most recent call last):
File "cage_deformer_3d.py", line 14, in
from pytorch_points.network.geo_operations import mean_value_coordinates_3D, edge_vertex_indices
File "/home/djq19/deep_cage/pytorch_points/pytorch_points/network/geo_operations.py", line 2, in
from .._ext import sampling
ImportError: /home/djq19/deep_cage/pytorch_points/pytorch_points/_ext/sampling.cpython-37m-x86_64-linux-gnu.so: undefined symbol: state