Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

ImportError: undefined symbol

See original GitHub issue

Describe the bug An ImportError is thrown when trying to import ants following from source installation

To Reproduce Steps to reproduce the behavior:

git clone https://github.com/ANTsX/ANTsPy.git
cd ANTsPy
git checkout v0.2.3
python3 setup.py install --user

Expected behavior No ImportError is thrown.

Additional Context

CentOS 7.6.1810
Python 3.6.1
GCC 9.1.0
CMake 3.13.1

Full traceback:

ImportError                               Traceback (most recent call last)
<ipython-input-1-78f96f50f910> in <module>()
----> 1 import ants

~/src/ANTsPy/ants/__init__.py in <module>()
      5     pass
      6
----> 7 from .core import *
      8 from .utils import *
      9 from .segmentation import *

~/src/ANTsPy/ants/core/__init__.py in <module>()
      1
----> 2 from .ants_image import *
      3 from .ants_image_io import *
      4
      5 from .ants_transform import *

~/src/ANTsPy/ants/core/ants_image.py in <module>()
     25 import inspect
     26
---> 27 from .. import utils, registration, segmentation, viz
     28 from . import ants_image_io as iio2
     29

~/src/ANTsPy/ants/utils/__init__.py in <module>()
      1
----> 2 from .bias_correction import *
      3 from .channels import *
      4 from .convert_nibabel import *
      5 from .crop_image import *

~/src/ANTsPy/ants/utils/bias_correction.py in <module>()
      2
      3
----> 4 from . import process_args as pargs
      5 from .get_mask import get_mask
      6 from .iMath import iMath

~/src/ANTsPy/ants/utils/process_args.py in <module>()
     12
     13 from ..core import ants_image as iio
---> 14 from .. import lib
     15
     16 _short_ptype_map = {

~/src/ANTsPy/ants/lib/__init__.py in <module>()
      2
      3 ## LOCAL ##
----> 4 from .antiAlias import *
      5 from .antsImage import *
      6 from .antsImageClone import *

ImportError: /home/users/a5b/src/ANTsPy/ants/lib/antiAlias.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZN3itk13ProcessObject8SetInputERKSsPNS_10DataObjectE