In the process of running your 'PyTorch' version of the code, I found a small problem that I couldn't fix

[DRleavealRD]

File "E:\kuaiyaWJ\Misc\DNCNN+STARGAN\ADLcnn\trainer.py", line 133, in train
loss.backward()
File "F:\anaconda520\envs\pytorch\lib\site-packages\torch_tensor.py", line 255, in backward
torch.autograd.backward(self, gradient, retain_graph, create_graph, inputs=inputs)
File "F:\anaconda520\envs\pytorch\lib\site-packages\torch\autograd_init_.py", line 149, in backward
allow_unreachable=True, accumulate_grad=True) # allow_unreachable flag
RuntimeError: the derivative for 'histc' is not implemented.

Just like the error reported above, when I was using 'torch. Histc' to perform 'backward', the problem appeared.
Could you help me with that, please? Thank you very, very much