igGrid - IgniteUI 12.2.20122.2029

I'm getting this error when I try to show the Column Chooser.  I'm using jquery-1.8.3 if that makes a difference.

Error: cannot call methods on igGridHiding prior to initialization; attempted to call method 'showColumnChooser'
http://localhost:3000/Scripts/jquery-1.8.3.js

Essentially, I'm trying to add a button to the pager that will open up the column chooser.  I don't know why, but when I click the button it doesn't seem to know about the hiding feature of the grid.  Any ideas?  (full code attached)

rendered: function(evt, ui){
	var waitForPager = setInterval(function() {
		if ($('.ui-iggrid-pagerrecordslabel').length > 0)
		{
			clearInterval(waitForPager);

			$('<button>Choose Columns</button>')
				.insertAfter('.ui-iggrid-pagerrecordslabel')
				.button({icons: {primary: "ui-icon-wrench"}, text: true})
				.css('margin-left', '40px')
				.click(function(clickEvt){ 
					$("#MyGrid").igGridHiding("showColumnChooser"); 
				});					
		}
	}, 10);
}