代码运行出错

[zyz0000]

您好！我在运行代码的时候出现下面的错误：
File "/data/asdf/RAAT/dee/dee_model.py", line 1079, in forward
out = batch_elem_emb + batch_pos_emb
RuntimeError: The size of tensor a (54) must match the size of tensor b (152) at non-singleton dimension 0

请问这个错误怎么解决？谢谢