Download Raw dataset failed

[lyonchen98]

when run python download_data.py raw --video_id_csv raw_train_val_splits.csv， it fails quickly。

Warning: No raw assets given for video id 48458703
Warning: No raw assets given for video id 48458704
Warning: No raw assets given for video id 48458706
Warning: No raw assets given for video id 48458713
Warning: No raw assets given for video id 48458714
Warning: No raw assets given for video id 48458716
Warning: No raw assets given for video id 48458717
Warning: No raw assets given for video id 48458719
Warning: No raw assets given for video id48458728
Warning: No raw assets given for video id48458729
Warning: No raw assets given for video id48458730
Warning: No raw assets given for video id48458732
Warning: No raw assets given for video id 48458735
Warning: No raw assets given for video id 48458747
Warning: No raw assets given for video id 48458756
Warning: No raw assets given for video id 48458757
Warning: No raw assets given for video id 48458762
Warning: No raw assets given for video id 48458765
Warning: No raw assets given for video id 48458766
Warning: No raw assets given for video id 48458772
Warning: No raw assets given for video id 48458781
Warning: No raw assets given for video id 48458784
Warning: No raw assets given for video id 4845878