Created by: liu824

使用yoloV4配置文件yolov4_cspdarknet_voc.yml训练时出现这样的结果：

File "PaddleDetection-release-0.3/tools/train.py", line 366, in <module>
    main()
  File "PaddleDetection-release-0.3/tools/train.py", line 203, in main
    devices_num=devices_num)
  File "/home/aistudio/PaddleDetection-release-0.3/ppdet/data/reader.py", line 410, in create_reader
    reader = Reader(**cfg)()
  File "/home/aistudio/PaddleDetection-release-0.3/ppdet/data/reader.py", line 204, in __init__
    self._roidbs = self._dataset.get_roidb()
  File "/home/aistudio/PaddleDetection-release-0.3/ppdet/data/source/dataset.py", line 68, in get_roidb
    self.load_roidb_and_cname2cid()
  File "/home/aistudio/PaddleDetection-release-0.3/ppdet/data/source/voc.py", line 154, in load_roidb_and_cname2cid
    gt_class.append([cname2cid[cname]])
KeyError: 'bbox'

之前遇到过这个问题，原因是训练集的标签类别与label_list.txt中的不匹配，但这次是已经改过来了。而且这次用到的训练数据是在yoloV3上成功训练的数据集