Solution about `ImportError: undefined symbol`

[chengdazhi]

Solution about `ImportError: undefined symbol`

[hellock]

To use a custom extension, you may refer to the official tutorial.
As stated in the documentation,

Just be sure to import torch first, as this will resolve some symbols that the dynamic linker must see

[cjnjuwhy]

or you should rename DCN-1.0-py3.7-linux-x86_64.egg to DCN or dcn

[zhuwanling]

I rename DCN-1.0-py3.7-linux-x86_64.egg to DCN.
running python test.py.
error：AttributeError: module 'DCN' has no attribute 'deform_conv_forward'

[Periter]

I ran into this error: undefined symbol: __cudaPopCallConfiguration
and waste time to find the solution all the day.
Finally, check the environment version follow this link:
https://rusty1s.github.io/pytorch_geometric/build/html/notes/installation.html
I found the conda virtual env's and system's cuda version do not match.
After I create a new env, this issue gone.

[igo312]

or you should rename DCN-1.0-py3.7-linux-x86_64.egg to DCN or dcn

I met import error. And rename the directory name import worked.

but I should use DCN.deform_conv_forward it will occur same problem. So what should I do ?

Traceback (most recent call last):
File "<stdin>", line 1, in
ImportError: libc10.so: cannot open shared object file: No such file or directory

Sorry for careless. Finally I run the code well use the advice from @hellock