ImportError: : undefined symbol: _ZN3c105ErrorC1ENS_14SourceLocationERKSs

[qianzhang2018]

ImportError: : undefined symbol: _ZN3c105ErrorC1ENS_14SourceLocationERKSs

[KelvinHuang666]

I met the simple question...

Traceback (most recent call last):
File "demo.py", line 136, in
demo()
File "demo.py", line 82, in demo
from models.yolov3_baseline import YOLOv3
File "/asff/models/yolov3_baseline.py", line 5, in
from .network_blocks import *
File "/asff/models/network_blocks.py", line 5, in
from utils.DCN.modules.deform_conv2d import DeformConv2d
File "/asff/utils/DCN/modules/init.py", line 1, in
from .deform_conv2d import DeformConv2d, _DeformConv2d, DeformConv2dPack, DeformConv2dPackMore
File "/asff/utils/DCN/modules/deform_conv2d.py", line 12, in
from ..functions.deform_conv2d_func import DeformConv2dFunction
File "/asff/utils/DCN/functions/init.py", line 1, in
from .deform_conv2d_func import DeformConv2dFunction
File "/asff/utils/DCN/functions/deform_conv2d_func.py", line 13, in
import DCN
ImportError: /usr/local/lib/python3.6/dist-packages/DCN-1.0-py3.6-linux-x86_64.egg/DCN.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZN6caffe26detail37_typeMetaDataInstance_preallocated_32E
root@0ad4f68fc474:/asff#

[WangZhaoxue000]

the same problem...

[KelvinHuang666]

change your torch version

[WangZhaoxue000]

torch.version ='1.3.1', torchvision.version='0.4.2'
still got the error

[myselvess]

torch.version ='1.3.1', torchvision.version='0.4.2'
still got the error

same version, have you solve this problem?

[XYZ-qiyh]

change your torch version

Hello, which version of PyTorch do you use?
I met the same problem。 I' using Pytorch 1.0.1 and CUDA 10.0

[WeixiongLin]

Same here, I use torch 1.0.1. I tried CUDA 10.0 and 9.2, they don't work.

[ted-chl]

I also met error with using torch 1.0.0, CUDA 10.2 (also in torch 1.10.0)

[yukistavailable]

I succeeded in installing DCN and importing it by the solution below. But I don't know if it works fine for other people.

1. clone this repository
2. install anaconda and create a conda environment: conda create -n my-env python=3.7
3. install some packages: conda install pytorch=1.3.1 torchvision cudatoolkit=10.0 pillow=6.1
4. sh make.sh