bug with DefaultFormatBundle in test_pipeline when running image_demo.py

[hyz-xmaster]

Thanks for your error report and we appreciate it a lot.

Checklist

1. I have searched related issues but cannot get the expected help.
2. The bug has not been fixed in the latest version.

Describe the bug
See here run demo. I think this bug is caused by changing ImageToTensor to DefaultFormatBundle in the config file. Something wrong with DefaultFormatBundle in test_pipeline. The actual bug happens in mmcv and here

Reproduction

1. What command or script did you run?

 python demo/image_demo.py demo/demo.jpg configs/vfnet/vfnet_r50_fpn_1x_coco.py checkpoints/vfnet_r50_1x_41.6.pth

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

   Change ImageToTensor to DefaultFormatBundle in the config file.

3. What dataset did you use?

   COCO

Environment

1. Please run python mmdet/utils/collect_env.py to collect necessary environment information and paste it here.

   mmcv = 1.1.5 pytorch = 1.6.0 mmdet=2.6.0

Error traceback

see here

Bug fix

Something wrong with DefaultFormatBundle in test_pipeline. Changing it back to ImageToTensor solves the problem.

[ZwwWayne]

Hi @hyz-xmaster,
Thanks for your bug report. Would you like to create a PR to fix that?

[hyz-xmaster]

Just back from holiday. It seems this bug has been fixed by #4381.