Import error: undefined symbol

[gravelandblood]

I have installed the python wrapper successfully.
But an error occurs when I import it:

>>> import pcl
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/pcl/__init__.py", line 2, in <module>
    from ._pcl import *
ImportError: /usr/local/lib/python2.7/dist-packages/pcl/_pcl.so: undefined symbol: _ZN3pcl7PCLBaseINS_8PointXYZEE13setInputCloudERKN5boost10shared_ptrIKNS_10PointCloudIS1_EEEE

Best Wishes!

[SinghGauravKumar]

Any solution of this?

[SkanderHannachi]

same here

EDIT : it's numpy related. look here : #79

[mikeroberts3000]

@SkanderHannachi these two errors don't appear to me to be directly related. One is regarding an undefined symbol that seems to originate from python-pcl code:

_ZN3pcl7PCLBaseINS_8PointXYZEE13setInputCloudERKN5boost10shared_ptrIKNS_10PointCloudIS1_EEEE

In contrast, #79 is regarding an undefined symbol that seems to originate from some lower-level CPython code:

PyFPE_counter

Can you provide more detail regarding how these two issues are related?

[mikeroberts3000]

I ended up finding an astonishing workaround for this issue.

When I run python setup.py install, the setup script prints out a few gcc and g++ commands. If you can believe it, the workaround for this problem was to take each gcc and g++ command, copy it to the command line, and run it manually. And then to run python setup.py install again. Running the setup script again will not call gcc or g++, but will copy the relevant files to the Python site-packages folder.

So, the build environment is somehow different when invoking gcc and g++ from setup.py, as opposed to invoking gcc and g++ manually from the command line.

There are several open issues where other people have similar errors (#63, #101, #119), so I don't think this issue is due to a local build configuration problem on my machine.