error with swig_import_helper() when run example ROFTV.py

compile is fine, but when i run the example ROFTV.py, I get the error:

Traceback (most recent call last):
  File "ROFTV.py", line 1, in <module>
    from PyCA.Core import *
  File "/home/scc/download/pyca/pyca-bin/python_module/PyCA/Core.py", line 17, in <module>
    _Core = swig_import_helper()
  File "/home/scc/download/pyca/pyca-bin/python_module/PyCA/Core.py", line 16, in swig_import_helper
    return importlib.import_module('_Core')
  File "/home/scc/scratch/anaconda2/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
ImportError: No module named _Core

I search this issue and find the same one Issue#54 which was solved , but its solution doesn't work here.

I run the code nm -u _Core.so, and there are many missing symbols like

                 U _ZTVN10__cxxabiv120__si_class_type_infoE@@CXXABI_1.3
                 U _ZTVN4PyCA15GGaussianFilterE
                 U _ZTVN4PyCA17MultiscaleManagerE
                 U _ZTVSt11logic_error@@GLIBCXX_3.4
                 U _ZTVSt15basic_streambufIcSt11char_traitsIcEE@@GLIBCXX_3.4
                 U _ZTVSt15basic_stringbufIcSt11char_traitsIcESaIcEE@@GLIBCXX_3.4
                 U _ZTVSt16invalid_argument@@GLIBCXX_3.4
                 U _ZTVSt19basic_istringstreamIcSt11char_traitsIcESaIcEE@@GLIBCXX_3.4
                 U _ZTVSt19basic_ostringstreamIcSt11char_traitsIcESaIcEE@@GLIBCXX_3.4
                 U _ZTVSt9basic_iosIcSt11char_traitsIcEE@@GLIBCXX_3.4
                 U _ZTVSt9exception@@GLIBCXX_3.4

my verisons are:

gcc 4.8.4
cmake 2.8.12.2
swig 3.0.12
CUDA 8.0
python 2.7.13 :: Anaconda custom (64-bit)

Any help is appreciated, thanks a lot.

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