Error about "RuntimeError: output with shape [] doesn't match the broadcast shape [3, 189, 275]”

[sunohm]

Hi,nmhkahn.
when i run " carn/sample.py "
I got an error about "RuntimeError: output with shape [] doesn't match the broadcast shape [3, 189, 275]"
lr_patch = torch.tensor((4, 3, h_chop, w_chop), dtype=torch.float)
print("tensor.ndim",lr_patch.ndim)
print("tensor.shape", lr_patch.shape)
print("lr_patch",lr_patch)
lr_patch[0].copy_(lr[:, 0:h_chop, 0:w_chop])
lr_patch[1].copy_(lr[:, 0:h_chop, w-w_chop:w])
lr_patch[2].copy_(lr[:, h-h_chop:h, 0:w_chop])
lr_patch[3].copy_(lr[:, h-h_chop:h, w-w_chop:w])
lr_patch = lr_patch.to(device)
print:
h_half,w_half 169 255
h_chop,w_chop 189 275
tensor.ndim 1
tensor.shape torch.Size([4])
lr_patch tensor([ 4., 3., 189., 275.])
I really don't understand why，so i need your help， thank you!