静态图跑动态shape场景报错ValueError:The 7th input dims of ‘set_inputs‘ must be the same as network‘s input,but

1.系统环境

硬件环境(Ascend/GPU/CPU): Ascend

执行模式：静态图

Python版本：3.7

操作系统平台：Linux

2. 报错信息

2.1 问题描述

静态图跑动态shape场景报错

ValueError: The 7th input dims of 'set_inputs' must be the same as network's input, but got 'set_inputs' : 2 and network's input: 3.复制

2.2 报错信息

File “*/python3.7/site-packages/mindspore/nn/cell.py”, line 2221, in _check_compile_dynamic_shape f”The {index + 1}th input dims of ‘set_inputs’ must be the same as network’s input,”

ValueError: the 7th input dims of ‘set_inputs’ must be the same as network’s input, but got ‘set_inputs’: 2 and network’s input: 3复制

3. 根因分析

动态shape场景，这是说在set_inputs的时候的输入和网络输入的shape不一致，当我们使用静态图动态shape功能时，需要在训练之前给动态的部分置为None如下:

xs_pad =