tensorflow Restoring from checkpoint failed

发生异常: tensorflow.python.framework.errors_impl.InvalidArgumentError
Restoring from checkpoint failed. This is most likely due to a mismatch between the current graph and the graph from the checkpoint. Please ensure that you have not altered the graph expected based on the checkpoint. Original error:  Assign requires shapes of both tensors to match. lhs shape= [256,3136] rhs shape= [256,5011]  

如图： 

解决办法:

1. 删去之前训练得到的checkpoint，然后重新训练。同时删除之前生成logs文件夹。

2. 或者可以删除某些checkpoint,让程序可以继续从最高的step开始。