mmcv-ful=1.6.0中不能识别pkl的问题

报错信息

Traceback (most recent call last):
File “./tools/train.py”, line 260, in
main()
File “./tools/train.py”, line 223, in main
datasets = [build_dataset(cfg.data.train)]
File “/hy-tmp/mmdetection3d-1.0.0rc6/mmdet3d/datasets/builder.py”, line 46, in build_dataset
dataset = build_from_cfg(cfg, MMDET_DATASETS, default_args)
File “/usr/local/miniconda3/envs/occ/lib/python3.8/site-packages/mmcv/utils/registry.py”, line 72, in build_from_cfg
raise type(e)(f’{obj_cls.name}: {e}')
TypeError: NuSceneOcc: Unsupported format: None

修改代码

原来的代码

data = mmcv.load(ann_file)

更改后的代码

data = mmcv.load(ann_file, file_format='pkl')