When trying to load my model created with Google Sketchup I get an exception and my model can not be loaded: ``` Uncaught TypeError: Cannot read property 'material' of null createSceneGraphColladaLoader.js:620 createSceneGraphColladaLoader.js:688 createSceneGraphColladaLoader.js:688 parseColladaLoader.js:109 req.onreadystatechange ``` I tried to bypass this issue by adding a try catch block around this code but it caused problems when rendering the scene The model can be found here: http://dl.dropbox.com/u/14671199/flyer.dae Thanks