Matlab neural network pattern recognition test, error: Input 1 size does not match net.inputs{1}.size

hello,

I trained a network using nprtool.

with 180 input, 30 hiddenlayers and 10 target.

my input and target is binary.

x = 180x841

t = 10x841

after that, i used that network for testing (GUI), here my code :

load target

t=target4 %is the same target i used for trained 10x841

x=newinput %here is the new input 1x841

load net

y = net(x);

e = gsubtract(t,y);

performance = perform(net,t,y)

tind = vec2ind(t);

yind = vec2ind(y);

percentErrors = sum(tind ~= yind)/numel(tind);

and always error :

"error: Input 1 size does not match net.inputs{1}.size"

can anyone help me, what should i do ?

thx before