KeyError: 'Cascade Mask R-CNN'

[tik0]

1. I've followed the installation steps from https://mmdetection.readthedocs.io/en/v2.25.0/get_started.html
2. Then I try to execute the following command from the manual mim download mmdet --config yolov3_mobilenetv2_320_300e_coco --dest .

$ mim download mmdet --config yolov3_mobilenetv2_320_300e_coco --dest .
~/miniconda3/envs/openmmlab/lib/python3.8/site-packages/_distutils_hack/__init__.py:30: UserWarning: Setuptools is replacing distutils.
  warnings.warn("Setuptools is replacing distutils.")
Traceback (most recent call last):
  File "~/miniconda3/envs/openmmlab/bin/mim", line 33, in <module>
    sys.exit(load_entry_point('openmim', 'console_scripts', 'mim')())
  File "~/miniconda3/envs/openmmlab/lib/python3.8/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "~/miniconda3/envs/openmmlab/lib/python3.8/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "~/miniconda3/envs/openmmlab/lib/python3.8/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "~/miniconda3/envs/openmmlab/lib/python3.8/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "~/miniconda3/envs/openmmlab/lib/python3.8/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "~/repositories/mim/mim/commands/download.py", line 44, in cli
    download(package, configs, dest_root)
  File "~/repositories/mim/mim/commands/download.py", line 75, in download
    model_info = get_model_info(
  File "~/repositories/mim/mim/commands/search.py", line 170, in get_model_info
    dataframe = convert2df(metadata)
  File "~/repositories/mim/mim/commands/search.py", line 396, in convert2df
    for key, value in name2collection[collection_name].items():
KeyError: 'Cascade Mask R-CNN'

I've also tried to install mim directly from master, but the same error appears.

[ice-tong]

Hi @tik0 , this looks like a bug introduced in mmdet==2.25.0, related commit: open-mmlab/mmdetection@1fd48f7.

A quick workaround is to use mmdet<2.25.0.

[ice-tong]

The same issue under mmdet: open-mmlab/mmdetection#8122

[tamersalama]

So - how would I specify mmdet<2.25.0 during download? I see that the download command rejects the version number as part of the package name (it rejects mmdet==2.24.0 for example).

[ice-tong]

Hi @tamersalama , you should install mmdet<2.25.0. For example: mim install mmdet==2.24.0.
In addition, if you are interested, you can create a PR for mmdet to fix this problem, just change the Cascade Mask R-CNN in this file to Mask R-CNN.

[br3nr]

@ice-tong Hello, I am happy to do this, however I am unsure how I would actually test these changes if you wouldn't mind advising :)

[ice-tong]

@RepetitiveRoutine Hi, you just need to modify two places in this file, change Cascade Mask R-CNN to Mask R-CNN, the steps in this tutorial will work fine.
The contributing doc can be found here. If you have any questions, feel free to feedback to us.

[ZwwWayne]

Fixed in open-mmlab/mmdetection#8240