Setting up folders for require.js

I am trying to set up folders for require.js and I am just having errors.

Here is my folder structure:

Web folder
--default.html
--[Scripts]
----main.js
----require-cfg.js
----require.js
----[lib]
------jquery1-9.1.js

my require-cfg.js

var require = ({
    baseUrl: 'Scripts',
    paths: {
        jquery: '/lib/jquery-1.9.1'
    }
});

In my main.js:

require(["require-cfg"], function (core) {

});

in my default.html

 <script src="Scripts/require-cfg.js"></script>
  <script src="Scripts/require.js"></script>
  <script src="Scripts/main.js"></script>

I have a function in the main.js that uses jquery syntax. When I run the web app, I am getting the error"

JavaScript runtime error: '$' is undefined

can anyone direct me on what I am doing wrong??

THanks!!

-- I figured out that By default, jQuery registers itself using the global functions "$" and "jQuery", even when used with AMD/RequireJS. If you want to turn off this behavior you have to call noConflict function:Correct way to implement jQuery with require.js

adding the below worked:

define('jquery-private', ['jquery'], function (jq) {
    return jq.noConflict( true );
});