Setting up Node.Js and Mocha for testing

I am very new at Node.Js, Mocha and automation. I'm trying to set up a test and run it following this guide: https://team.goodeggs.com/getting-started-with-selenium-webdriver-for-node-js-f262a00c52e1#.xv0t90qfi

I made a directory called "Node" and i have been working in that installing all the dependencies that the guide requires, but now i tried to run 'mocha integration-test.coffee --compilers coffee:coffee-script/register' and i get the error: "'mocha' is not a recognized as an internal or external command, operable program or batch file" but when i go into my package.json file i see Mocha there.

Is there something i'm not understanding? I have the javascript file i am trying to run inside the "Node" directory.

via rycekrispies