A question to your code from a Chinese postgraduate student

[zxm-robot]

Hello! Dear author! When i run the "grasp.py" , I met an error “No such file or directory: '../data/FlowNet2_checkpoint.pth.tar'”, so I followed your advice and ran the "main.py" in the flownet2-pytorch. However it gives an issue like this(NameError: name 'validation_loader' is not defined)

and then i download the MPI Sintel datasets from http://sintel.is.tue.mpg.de/downloads to solve this problem but failed because the dataset seems to be images in a game. Can you provide me a solution? Thank you sincerely!