AttributeError: 'COCO' object has no attribute 'get_cat_ids'

Traceback (most recent call last):
  File "tools/train.py", line 161, in <module>
    main()
  File "tools/train.py", line 136, in main
    datasets = [build_dataset(cfg.data.train)]
  File "/mmdetection/mmdet/datasets/builder.py", line 63, in build_dataset
    dataset = build_from_cfg(cfg, DATASETS, default_args)
  File "/opt/conda/lib/python3.7/site-packages/mmcv/utils/registry.py", line 168, in build_from_cfg
    return obj_cls(**args)
  File "/mmdetection/mmdet/datasets/custom.py", line 71, in __init__
    self.data_infos = self.load_annotations(self.ann_file)
  File "/mmdetection/mmdet/datasets/coco.py", line 38, in load_annotations
    self.cat_ids = self.coco.get_cat_ids(cat_names=self.CLASSES)
AttributeError: 'COCO' object has no attribute 'get_cat_ids'

在mmdetection上训练coco数据集出现了这个问题

问题已解决