same question! got link error:
import torch_baidu_ctc._C as _torch_baidu_ctc
ImportError: /home/user/miniconda3/envs/py3/lib/python3.6/site-packages/torch_baidu_ctc/_C.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZN2at19UndefinedTensorImpl10_singletonE
when use pytorch 1.1.0.
same question! got link error: import torch_baidu_ctc._C as _torch_baidu_ctc ImportError: /home/user/miniconda3/envs/py3/lib/python3.6/site-packages/torch_baidu_ctc/_C.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZN2at19UndefinedTensorImpl10_singletonE when use pytorch 1.1.0.