Notification setIcon doesn't work on OSX?

I'm trying to set the icon on the notification window and set the icon, however the icon doesn't work. I'm using the setIcon path below elsewhere (on a menuItem) and it works fine, but this code spits out an error. This is for a OSX desktop application.

try {
    var n = Titanium.Notification.createNotification(window);
    n.setTitle("Click to Call added");
    n.setTimeout(5000);
    n.setIcon("applicationicon.png");
    n.setMessage("The application Click to Call has been added into your Codenow repository");
    n.show();
} catch(e) {
    alert(e);
}

error

[02:30:27:509] [Titanium.JavaScript.KJSUtil] [Debug] Evaluating JavaScript file at: /Users/Me/Library/Application Support/Titanium/modules/osx/tiui/1.2.0.RC4/ui.js
[02:30:27:521] [Titanium.UI.TitaniumProtocols] [Error] Error finding /Users/Me/Library/Application Support/Titanium/modules/osx/tiui/1.2.0.RC4/null

The folder it's trying to look under doesn't even exist, while the image is in the resources folder of the project.

This works for me:

Titanium.Notification.createNotification({
   icon: '/images/boxr_icon.png',
   message: 'Download finished!'
  }).show();

The root ("/") in the icon path is the Resources folder.