How to load the image datasets?

[hlin863]

When executing the code blocks:

in_dataset, in_loaders, normalization_function, label_map_IN = utils.load_dataset('imagenet',
                                                                 batch_size=5,
                                                                 num_workers=1)

There is an error of:
RuntimeError: Found 0 files in subfolders of ./data\train

Which datasets are we required to download for the code's execution?
Are we supposed to create the subfolders manually or automatically?

Thanks and Best wishes,

Haocheng