Graph disconnected: cannot obtain value for tensor Symbol:Input_1 at layer "Input_1". The following previous layers were accessed without issue: []

i want to train squeeze net but this errror comes up

Graph disconnected: cannot obtain value for tensor Symbol:Input_1 at layer “Input_1”. The following previous layers were accessed without issue: []

how to solve?

Can you please attach the exported model file so that we can reproduce this issue ?

i solve it, it is because after input i put directly maxpool, i want to resize half of the input size by maxpool.