title: 'express' is not recognized as an internal or external command
body: <p>I am trying to start an express-generator app but I am getting "express is not recognized an internal or external command. I tried all the below
  <strong>in windows CMD as administrator</strong>:</p>
  
  <pre><code>$ npm install express -g
  $ npm install express-generator -g
  $ mkdir myApp
  $ cd myApp
  $ express helloApp
  </code></pre>
  
  <p>the latest command was supposed to create all the express-generator related files (i.e. routes, models, views, etc.). But I am still getting the same error again and again. Any solutions would be much appreciated.</p>