I found that something is wrong in target because it’s zero but I don’t know why?!

inputs, targets = next(iter(train_dl))
print(targets)

tensor([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0])