Upgrade sencha touch 2.0 to 2.1 issues

[koolll]

I just upgrade my sencha touch 2.0 to 2.1. But I facing a problem now. I cant open my application now. Please help . By the way I follow this link to upgrade sencha touch.
http://senchatouchexp.blogspot.com/2...pgrade-21.html
Here is the error I get.

• [COLOR=red !important]GET http://localhost/bluebutton/touch/sr...=1363110950962 404 (Not Found) sencha-touch.js:7979[/COLOR]

• [COLOR=red !important]Uncaught Error: [Ext.Loader] Failed loading 'touch/src/dataview/Override.js', please verify that the file exists [/COLOR]
• [COLOR=red !important][/COLOR]
• [COLOR=red !important][/COLOR]

[COLOR=red !important]

[/COLOR]

[mitchellsimoens]

When you upgraded, you probably didn't copy the Override.js file over. If this is the case then it's a good reason why you shouldn't touch (edit/add/delete) anything in the library directory (touch). Any overrides should go into your app directory and be namespaced for your app. If you want to have shared overrides then you can have an override directory outside the app directory. Just don't touch the touch directory.