RuntimeError: The size of tensor a (115) must match the size of tensor b (64) at non-singleton dimension 1

hello I also met this question :RuntimeError: The size of tensor a (4096) must match the size of tensor b (65536) at non-singleton dimension 1 .I tried to change batch_size and checked the version of torch ,both failed , can you give me some advice? I am appreciate if you could help.