issue to run the training after successful install

[GuesmiAbd]

Hello,

I have an issue to run the training after successful install of the repo. This is the command line and the generated error message.

Thanks in advance, Raouf

python -m pointnet2.train.train_cls

Traceback (most recent call last): File "/home/raouf/workspace/gitprojects/Pointnet2_PyTorch/pointnet2/utils/pointnet2_utils.py", line 20, in import pointnet2._ext as _ext ImportError: /home/raouf/workspace/gitprojects/Pointnet2_PyTorch/pointnet2/_ext.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZN3c105ErrorC1ENS_14SourceLocationERKSs

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "/home/raouf/anaconda3/lib/python3.6/runpy.py", line 183, in _run_module_as_main mod_name, mod_spec, code = _get_module_details(mod_name, _Error) File "/home/raouf/anaconda3/lib/python3.6/runpy.py", line 109, in _get_module_details import(pkg_name) File "/home/raouf/workspace/gitprojects/Pointnet2_PyTorch/pointnet2/init.py", line 17, in from pointnet2 import utils File "/home/raouf/workspace/gitprojects/Pointnet2_PyTorch/pointnet2/utils/init.py", line 8, in from . import pointnet2_utils File "/home/raouf/workspace/gitprojects/Pointnet2_PyTorch/pointnet2/utils/pointnet2_utils.py", line 24, in "Could not import _ext module.\n" ImportError: Could not import _ext module. Please see the setup instructions in the README: https://github.com/erikwijmans/Pointnet2_PyTorch/blob/master/README.rst

[erikwijmans]

This person seems to have the same issue and it was resolved: https://github.com/facebookresearch/maskrcnn-benchmark/issues/1

[dragonbook]

I had a similar issue(UndefinedTensorImpl10_singletonE , undefined symbol: __cudaPopCallConfiguration). Under Ubuntu16.04+cuda9.2, and the PyTorch was installed by "conda install pytorch torchvision cudatoolkit=9.0 -c pytorch", when import _ext module, there will be some undefined symbol errors. I finally fix it by reinstalling pytorch with cudatoolkit=9.2.