Mmdetection: ImportError: cannot import name 'get_dist_info'

[yuyijie1995]

After I used 'python setup.py develop' this afternoon ,this error happened,I tried to re install the mmcv,but it is useless.
error info:
(mm) wrc@wrc:/media/wrc/0EB90E450EB90E45/mmdetection$ python tools/test.py configs/guided_anchoring/ga_faster_r50_caffe_fpn_1x.py ./work_dirs/ga_faster_rcnn_r50_caffe_fpn_multiscaletrain/latest.pth --out pklfile/multi_ga.pkl --eval bbox
Traceback (most recent call last):
File "tools/test.py", line 13, in
from mmdet.apis import init_dist
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/apis/__init__.py", line 2, in
from .inference import (inference_detector, init_detector, show_result,
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/apis/inference.py", line 11, in
from mmdet.core import get_classes
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/core/__init__.py", line 3, in
from .evaluation import * # noqa: F401, F403
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/core/evaluation/__init__.py", line 5, in
from .eval_hooks import (CocoDistEvalmAPHook, CocoDistEvalRecallHook,
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/core/evaluation/eval_hooks.py", line 13, in
from mmdet import datasets
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/datasets/__init__.py", line 6, in
from .loader import DistributedGroupSampler, GroupSampler, build_dataloader
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/datasets/loader/__init__.py", line 1, in
from .build_loader import build_dataloader
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/datasets/loader/build_loader.py", line 8, in
from .sampler import DistributedGroupSampler, DistributedSampler, GroupSampler
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/datasets/loader/sampler.py", line 6, in
from mmcv.runner.utils import get_dist_info
ImportError: cannot import name 'get_dist_info'

[hellock]

Updating to the latest mmdetection can solve the problem.

[yuyijie1995]

I already git pull the latest mmdetection but the error still happened during the evaluation .
Traceback (most recent call last):
File "tools/test.py", line 14, in
from mmdet.core import coco_eval, results2json, wrap_fp16_model
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/core/__init__.py", line 3, in
from .evaluation import * # noqa: F401, F403
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/core/evaluation/__init__.py", line 5, in
from .eval_hooks import (CocoDistEvalmAPHook, CocoDistEvalRecallHook,
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/core/evaluation/eval_hooks.py", line 13, in
from mmdet import datasets
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/datasets/__init__.py", line 6, in
from .loader import DistributedGroupSampler, GroupSampler, build_dataloader
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/datasets/loader/__init__.py", line 1, in
from .build_loader import build_dataloader
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/datasets/loader/build_loader.py", line 8, in
from .sampler import DistributedGroupSampler, DistributedSampler, GroupSampler
File "/media/wrc/0EB90E450EB90E45/mmdetection/mmdet/datasets/loader/sampler.py", line 6, in
from mmcv.runner.utils import get_dist_info
ImportError: cannot import name 'get_dist_info'

[yuyijie1995]

I solved it by python setup.py develop again.

[zack624]

I reinstalled mmcv==0.2.15, and changed file: mmdet/datasets/loader/sampler.py, then it worked.
from mmcv.runner.utils import get_dist_info --> from mmcv.runner import get_dist_info