Problem with Adobe Air 2.7 and 3.0 Beta X

[SnakeMedia]

Hello Guys,

i have been built simple "Hello Ext" with Adobe Air.
Edit:
I am using with Extjs 4.0.2 Frameworks and Adobe Air 3.0 Beta X.

Updated:
All Browsers: It is working = 100 %
On Adobe Air can not show Extjs Frameworks. Are you not allowing with Adobe Air 3.0 Beta X?
I am trying for Ext.Air.Window like this:

/*    Extjs 4.0 and Adobe Air 2.7
*/
Ext.ns('Ext');


Ext.requires(
    'Ext.window.Window',
    'Ext.Air.AIRUtilsClass'
);


Ext.define('Ext.Air.Window',{
    extend: 'Ext.window.Window',
    ...
    initComponent: function() {
    ...    
    }
});

But it can not show into Adobe Air 2.7 and Adobe Air 3

How do i fix with AirUtilClass.js for Javascript Frameworks by Adobe Air and Dreamweaver CS5

Edit:
And i am trying with MioFactory 3.26:
I will try this. If i like this...
But it does not work because MioFactory gives error
Look at Picturres

557778_556e638bdb_e.jpg

Why does Extjs Frameworks not support yet with Adobe AIr and MioFactory =(

Thanks for replying

[Ekambos]

Refer to this
http://www.sencha.com/forum/showthread.php?132039-Update-for-extjs-4

I dont think Ext4 works well in AIR. Atleast in the application sandbox.