Cycle Gans Error RuntimeError: DataLoader worker (pid(s) 30412, 26524, 28704, 10456, 30900) exited unexpectedly

vision
9

In that case your channel dimension is missing and could be added via:

x = x.unsqueeze(1)

Also, since you are dealing with volumetric data, you would have to use the nn.*3d modules, such as nn.Conv3d.