vislearn/ngransac

gcc version

Closed this issue · 3 comments

Theodoric008 commented

when I do " python setup.py install "
i got error: " undefined symbol: _ZN6caffe26detail37_typeMetaDataInstance_preallocated_32E
"

i guess it is something about gcc version, can u help me? thx!

ebrach commented

Hi,

I'm not exactly sure what is causing that error, but since it is pointing to caffe, my best guess that it is not related to NG-RANSAC itself, but to your local PyTorch installation. The C++ linker seems to have problems finding the Caffe2 library (or parts of it) which is part of PyTorch.

Have you tried compiling other C++ extensions? E.g. following this tutorial: https://pytorch.org/tutorials/advanced/cpp_extension.html

In any case: We currently use GCC 7.3.0 if that is of any help.

Best,
Eric

Theodoric008 commented

Hi:
Thanks for replying! I will follow your suggestion and try! Thanks!

Theodoric008 commented

Great! Problem Solved!

  1. I should fill in opencv header and lib path in ./ngransac/setup.py
  2. import torch before import ngransac !!
    Thanks a lot !

Theodoric008