pyemd: I got an error while trying to import pyemd. It only occurred on Ubuntu.

Hi, I’m facing this error message when I tried to import pyemd in my code:

Traceback (most recent call last):
  File "vincent.py", line 30, in <module>
    from pyemd import emd
  File "/home/cragkhit/anaconda3/envs/myenv/lib/python3.6/site-packages/pyemd/__init__.py", line 67, in <module>
    from .emd import emd
ImportError: /home/cragkhit/anaconda3/envs/myenv/lib/python3.6/site-packages/pyemd/emd.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZTINSt8ios_base7failureB5cxx11E

I use Anaconda virtual environment in my development. The error message only occur on Ubuntu. Everything works fine on my macOS. I’m using

Distributor ID:	Ubuntu
Description:	Ubuntu 16.04.2 LTS
Release:	16.04
Codename:	xenial