Dojo 1.6 Custom Build Error - invalid propery id

http://stackoverflow.com/questions/13192710/dojo-1-6-custom-build-error-invalid-propery-id

by cswing

HTML

<div id="test"></div>

CSS

.red {
 width: 20px;
height: 20px;
 background-color: red;   
}

JavaScript

dojo.create("div", {'class': 'red'}, dojo.byId("test"));