.so: undefined symbol

[635583042qq]

when ℹ run this command :python train_and_eval.py --batch_size 8 --epochs 100 --ckpt_save_interval 2 i get error :Traceback (most recent call last): File "train_and_eval.py", line 183, in MODEL = importlib.import_module(args.net) # import network module File "/home/liyunhao/anaconda3/envs/pointnet2/lib/python3.7/importlib/init.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "", line 1006, in _gcd_import File "", line 983, in _find_and_load File "", line 967, in _find_and_load_unlocked File "", line 677, in _load_unlocked File "", line 728, in exec_module File "", line 219, in _call_with_frames_removed File "/home/liyunhao/bao/Pointnet2.PyTorch-master/tools/pointnet2_msg.py", line 3, in from pointnet2.pointnet2_modules import PointnetFPModule, PointnetSAModuleMSG File "/home/liyunhao/bao/Pointnet2.PyTorch-master/tools/../pointnet2/pointnet2_modules.py", line 5, in from . import pointnet2_utils File "/home/liyunhao/bao/Pointnet2.PyTorch-master/tools/../pointnet2/pointnet2_utils.py", line 7, in import pointnet2_cuda as pointnet2 ImportError: /home/liyunhao/anaconda3/envs/pointnet2/lib/python3.7/site-packages/pointnet2-0.0.0-py3.7-linux-x86_64.egg/pointnet2_cuda.cpython-37m-x86_64-linux-gnu.so: undefined symbol: Z31gather_points_grad_wrapper_fastiiiiN2at6TensorES0_S0

I think this error has something to do with so file but i cant solve it .

[18779042442]

Hello, I also encountered the same problem. Have you solved it?