ImportError: cannot import name 'get_dist_info' from 'mmcv.runner.utils'

[Varat7v2]

When I run this command:
python tools/demo.py configs/elephant/cityperson/cascade_hrnet.py ./models_pretrained/epoch_5.pth.stu demo/ result_demo/

I am getting this error:
ImportError: cannot import name 'get_dist_info' from 'mmcv.runner.utils'

I have installed mmdetection as per your instructions and also tried for conda-instruction.

I updated mmcv as per the suggestions got online but nothing is working. Now my mmcv version is 0.4.4

[Varat7v2]

I solved this issue by downgrading mmcv from 0.4.4 to 0.2.14 and the demo.py is running fine but there are no any bounding boxes on the result images.

[hasanirtiza]

Which configuration file and pre-trained model did you use for the demo?

[Varat7v2]

I am using the following configuration file and the pre-trained model:

configs/elephant/cityperson/cascade_hrnet.py
epoch_7.pth.stu
test images as provided in the demo folder

[hasanirtiza]

How are you running epoch_7.pth.stu with the configuration of cascade_hrnet.py ? It seems to me that epoch_7.pth.stu is a pre-trained model for RetinaNet, not for the Cascade Mask R-CNN. Or did you train your own model ?

[Varat7v2]

Oh yeah! I did not notice that. I changed the config file with that of Retinanet and now its working. Thank you very much. If I want to run this model with SSD300 or RetinaNet on mobile devices or Jetson, will it run efficiently in regard of inference time? Now I am thinking of trying it on Jetson.

Also I was earlier trying running it on my PC without GPU but it was showing some cuda error: ImportError: cannot import name 'deform_conv_cuda' Won't it run only on CPU?

Thank you again.

[hasanirtiza]

As of now Pedestron does not support a CPU-only version. #7

[Varat7v2]

Okay thanks.

[zhulishun]

I solved this issue by downgrading mmcv from 0.4.4 to 0.2.14 and the demo.py is running fine but there are no any bounding boxes on the result images.

Hi~How to downgrading mmcv from 0.4.4 to 0.2.14 ?

[Varat7v2]

@zhulishun you can downgrade it with pip install mmcv==0.2.14

[zhulishun]

@zhulishun you can downgrade it with pip install mmcv==0.2.14
thank u! I try, but
Pedestron$ pip install mmcv==0.2.14
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fef88377c50>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/mmcv/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fef88377be0>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/mmcv/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fef883774e0>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/mmcv/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fef88377390>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/mmcv/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x7fef88377240>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/mmcv/
ERROR: Could not find a version that satisfies the requirement mmcv==0.2.14 (from versions: none)
ERROR: No matching distribution found for mmcv==0.2.14

[hasanirtiza]

There seems to be a problem in your pip installation. This command should work
pip install mmcv==0.2.14
or
pip3 install mmcv==0.2.14
Depending upon your system. From the error log, it appears to me that you have some issues in your pip installation, have a look here or here.

[AdityaSrivastava1234]

Hi, I'm also facing the same issue while trying to do fine-tuning with cascade mask rcnn --> "ImportError: cannot import name 'get_dist_info' from 'mmcv.runner.utils' ". I'm following the colab notebook given by the authors which installs mmcv using the command --> "pip install mmcv==0.2.14". Still the problem persists. Please help me out, thanks in advance!

[hasanirtiza]

Most probably it is still an installation issue, after installing mmcv did you compile Pedestron using the following command ?
python setup.py develop

Secondly, juts have a look at the installation page and see if you have followed all the instructions correctly.