??? Error using ==> confusion at 57

Targets and outputs have different dimensions.

Error in ==> plotconfusion>plot_figure at 259 [c,cm] = confusion(t,y);

Error in ==> plotconfusion>update_figure at 106 plot_figure(fig,tt,yy,names);

Error in ==> plotconfusion at 80 update_figure(fig,tt,yy,names);

Error in ==> mlp_fold2 at 41 plotconfusion(trainOutput,testResult1);

how to fix it?