the follwing is the code. error occured while caculating src_fc6, src_fc7, src_fc8, src_scoremap = self.src_model(src_inputs, transfer=True)
 dst_fc6, dst_fc7, dst_fc8, dst_scoremap = self.dst_model(dst_inputs, transfer=True)
 src_fc6, src_fc7, src_fc8, src_scoremap = self.src_model(src_inputs, transfer=True)
 src_domain_outputs = self.discrinamitor([src_fc6.to(1), src_fc7.to(1), src_fc8.to(1)])
 dst_domain_outputs = self.discrinamitor([dst_fc6, dst_fc7, dst_fc8])