AssertionError: Assert name is not None

Hello, I'm getting the following error while I'm trying to train the Retinaface algorithm with the Widerface dataset:

Traceback (most recent call last):
File "train.py", line 502, in
main()
File "train.py", line 490, in main
train_net(args,
File "train.py", line 66, in train_net
roidbs = [
File "train.py", line 67, in
load_gt_roidb(args.dataset,
File "/home/rh667/Desktop/FP-Projects/insightface-master/detection/RetinaFace/rcnn/utils/load_data.py", line 13, in load_gt_roidb
imdb = eval(dataset_name)(image_set_name, root_path, dataset_path)
File "/home/rh667/Desktop/FP-Projects/insightface-master/detection/RetinaFace/rcnn/dataset/retinaface.py", line 42, in __init__
assert name is not None
AssertionError

Any idea to solve this error?