libtorch_cpu.so: cannot open shared object file: No such file or directory

[wxk2008]

File "./demo/D2Det_demo.py", line 5, in
from mmdet.apis import init_detector, inference_detector, show_result_pyplot
File "/opt/coco/project/D2Det/demo/../mmdet/apis/init.py", line 1, in
from .inference import (async_inference_detector, inference_detector,
File "/opt/coco/project/D2Det/demo/../mmdet/apis/inference.py", line 11, in
from mmdet.core import get_classes
File "/opt/coco/project/D2Det/demo/../mmdet/core/init.py", line 7, in
from .post_processing import * # noqa: F401, F403
File "/opt/coco/project/D2Det/demo/../mmdet/core/post_processing/init.py", line 1, in
from .bbox_nms import multiclass_nms, multiclass_nms1
File "/opt/coco/project/D2Det/demo/../mmdet/core/post_processing/bbox_nms.py", line 3, in
from mmdet.ops.nms import nms_wrapper
File "/opt/coco/project/D2Det/demo/../mmdet/ops/init.py", line 7, in
from .nms import nms, soft_nms
File "/opt/coco/project/D2Det/demo/../mmdet/ops/nms/init.py", line 1, in
from .nms_wrapper import nms, soft_nms
File "/opt/coco/project/D2Det/demo/../mmdet/ops/nms/nms_wrapper.py", line 4, in
from . import nms_cpu, nms_cuda
ImportError: libtorch_cpu.so: cannot open shared object file: No such file or directory

[JialeCao001]

@wxk2008 maybe the enviroment is not right. Please use pytorch1.1.0 and cuda9.0/10.0.