PHP Code:
<html
<
head>   
  <
title>Test 1</title
  <
link id="mainStyle" rel="stylesheet" type="text/css" href="ext-4.1-pr1/resources/css/ext-all-gray.css" /> 
  <
link rel="stylesheet" type="text/css" href="css/loading.css" /> 
  <
link id="bugsStyle" rel="stylesheet" type="text/css" href="css/bugs.css" /> 
  <
link id="portalStyle" rel="stylesheet" type="text/css" href="css/portal.css" /> 
  <
link rel="icon" type="image/png" href="img/index/favicon.png"
  <
script type="text/javascript" src="ext-4.1-pr1/ext-all-dev.js"></script> 
  <script type="text/javascript" src="app.js"></script> 
  <script type="text/javascript"> 
  Ext.Loader.setConfig({enabled: true, disableCaching: false});
  Ext.Loader.setPath('Ext.app', 'classes');
   Ext.require([
     'Ext.container.Viewport*',
     'Ext.resizer.Splitter',
     'Ext.state*'
   ]);
   Ext.onReady(function(){
    Ext.state.Manager.setProvider(new Ext.state.CookieProvider());
     Ext.create('Ext.app.MainViewport');
   });
  </script> 
</head> 
<body> 
  <div id="loading"><span class="title"></span><span class="logo"></span></div> 
</body> 
</html> 
Not work. The loader not load any .js in "classes" directory.

If I change the directory for: "ext-4.0.2a" work without problems. Any change in dinamic loading?

Greetings,