undefined symbol: cudaSetupArgument --> ImportError: libcudart.so.10.1: cannot open shared object file: No such file or directory

Checklist

1. I have searched related issues but cannot get the expected help.

Describe the bug Bug occurs when I test the demo.py. ImportError: /home/xu/mmdetection/mmdet/ops/dcn/deform_conv_cuda.cpython-37m-x86_64-linux-gnu.so: undefined symbol: cudaSetupArgument

Reproduction

1. What command or script did you run?

from mmdet.apis import init_detector

1. Did you make any modifications on the code or config? Did you understand what you have modified?

NO

Environment

• OS: [Ubuntu 16.04]
• GCC [5.4.0]
• PyTorch version [1.3.0]
• How you installed PyTorch [conda install torch]
• GPU model [GTX 1080Ti]
• CUDA and CUDNN version [CUDA Version 9.0.176]

Error traceback

from mmdet.apis import init_detector
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/home/xuhuanhua/mmdetection/mmdet/apis/__init__.py", line 2, in <module>
    from .inference import (inference_detector, init_detector, show_result,
  File "/home/xuhuanhua/mmdetection/mmdet/apis/inference.py", line 11, in <module>
    from mmdet.core import get_classes
  File "/home/xuhuanhua/mmdetection/mmdet/core/__init__.py", line 6, in <module>
    from .post_processing import *  # noqa: F401, F403
  File "/home/xuhuanhua/mmdetection/mmdet/core/post_processing/__init__.py", line 1, in <module>
    from .bbox_nms import multiclass_nms
  File "/home/xuhuanhua/mmdetection/mmdet/core/post_processing/bbox_nms.py", line 3, in <module>
    from mmdet.ops.nms import nms_wrapper
  File "/home/xuhuanhua/mmdetection/mmdet/ops/__init__.py", line 2, in <module>
    from .dcn import (DeformConv, DeformConvPack, DeformRoIPooling,
  File "/home/xuhuanhua/mmdetection/mmdet/ops/dcn/__init__.py", line 1, in <module>
    from .deform_conv import (DeformConv, DeformConvPack, ModulatedDeformConv,
  File "/home/xuhuanhua/mmdetection/mmdet/ops/dcn/deform_conv.py", line 9, in <module>
    from . import deform_conv_cuda
ImportError: /home/xuhuanhua/mmdetection/mmdet/ops/dcn/deform_conv_cuda.cpython-37m-x86_64-linux-gnu.so: undefined symbol: cudaSetupArgument

Bug fix

[ZwwWayne]

Hi @Xuhuanhua , This might because the CUDA environment you are currently running is different from that for compiling the code. You may check the version using nvcc -V and echo $CUDA_HOME.

[ZwwWayne]

https://github.com/open-mmlab/mmdetection/issues/1577