import * error after make install sucessfully

[zhangqianjin]

.so: undefined symbol: _ZN5boost6python9converter21object_manager_traitsINS_5numpy7ndarrayEE10get_pytypeEv

[sashaiw]

I am having a similar issue with a library that uses Boost.NumPy.

Python 2.7.12 (default, Nov 12 2018, 14:36:49)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import ur_kin_py
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
ImportError: /home/csrobot/catkin_ws/devel/lib/python2.7/dist-packages/ur_kinematics/ur_kin_py.so: undefined symbol: _ZN5boost6python5numpy6detail15get_float_dtypeILi64EEENS1_5dtypeEv

[TallJimbo]

These are standard linker error messages, and it's hard to debug them without knowing how you've built things and set up your environment in detail. In particular, please make sure that libboost_numpy.so is in LD_LIBRARY_PATH or a standard library location like /usr/lib or /usr/local/lib.

I should add that if you're using Boost.NumPy directly, you're better off switching from that standalone package to the NumPy support (with essentially the same APIs, at least originally) that is included directly in more recent versions of Boost.Python. That won't work if you're using it through ndarray, I'm afraid, though in that case I'd recommend switching to pybind11 if you can. I'm afraid I just don't have the time to maintain both Boost.Python and pybind11 support in ndarray anymore, and the latter is what I use.

[PingHsunTsai]

@sashaiw Is the problem solved? I have exactly the same error. Many thanks in advance:)