Timedelaynet problem even though with the exact example on the website

Hi, even though i'm using the code on MathWorks' page the code rises the error. Can someone help me about the problem ? I'm using matlab 2020a İ couldn't solve it by myself.

>> net = timedelaynet(1:2,10)
Not enough input arguments.

Error in mse (line 2)
mseValue = mean((ytrue-ypred).^2,"omitnan");

Error in network>new_network (line 142)
net.performParam = mse('defaultParam');

Error in network (line 71)
  net = new_network(varargin{:});

Error in feedforwardnet>create_network (line 105)
  net = network;

Error in feedforwardnet (line 73)
    net = create_network(param);

Error in timedelaynet>create_network (line 114)
  net = feedforwardnet(param.hiddenSizes,param.trainFcn);

Error in timedelaynet (line 82)
    net = create_network(param);