import * error after make install sucessfully #84

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1. sashaiw commented on Jul 12, 2019

   

   sashaiw

   on Jul 12, 2019

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   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
   
2. TallJimbo commented on Jul 12, 2019

   

   TallJimbo

   on Jul 12, 2019

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   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.
3. PingHsunTsai commented on Aug 14, 2022

   

   PingHsunTsai

   on Aug 14, 2022

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