Use NetModel in Mathematica?

I have tried to taste machine learning tutorials.
When I run

In[1]:=NetModel["Lenet Trained on MNIST Data"]

, the result is

out[1]:=NetModel[Lenet Trained on MNIST Data]

I think ‘NetModel’ doesn’t work well.
What is problem?
I use Win10, 64bit.

Thank u!

The names are case sensitive.

NetModel["LeNet Trained on MNIST Data"]

I’m sorry, Its my typo.
I typed as you did.

Should I run other command on Mathemetica before running

NetModel["LeNet Trained on MNIST Data"]

?

What version of Mathematica are you running? NetModel was added in 11.1.

$Version
(* 12.0.0 for Mac OS X x86 (64-bit) (April 7, 2019) *)

Oh…, I am using ver. 11.0.0.

I will update my Mathematica in ver. 11.1.

Thank you very much!