dataset mode not defined while training

[Liuhm0710]

while training the dataset, i find out some question that maybe due to some code wrong or miss, the traceback are below.

Sorry for bothering you these time.

[weijiawu]

hi,

These issues appear to be path errors that prevent the corresponding class from being imported, such as the Semantic_VOC in the first case. You can find the corresponding function at https://github.com/showlab/DatasetDM/blob/main/dataset/VOC2012.py.