title: Change the icon in a (appcelerator titanium) desktop app
body: <p>If I change the default default_app_logo.png with mine, i get: Packaging failed with message: 'NoneType' object has no attribute 'rfind'</p>
  
  <p>I am doing a desktop app. What I can do?</p>
  
  <p>I tried all of kinds of PNG formats...</p>
  
  <p>I am doing the package on windows platform.</p>