Cannot generate one-hot format labels because not set num_classes in data_preprocessor

[zeynepozdemir]

Hello, I am trying to use the eva model with a custom dataset of 20 classes. I could not find the reason for the error in the image below.

[yingfhu]

Please find the data_preprocessor field in your config file and add num_classes=20 in it, e.g.

data_preprocessor = dict(
    num_classes=20,
    ...

[zpz915]

我也是 我加了分类头 也不管用