How to update cmd version of sencha architect app

Hi All,

I have developed a sencha touch app in sencha architect 3 . Now when am trying to simulate the app on android using. build andoird app menu in acrchitect.

Packaging fails with below message.

The application was last modified by an older version of Sencha Cmd (4.0.1.45)

the current is 4.0.4.84.

Please run "sencha app upgrade" to update to 4.0.4.84.

And When build the build the web app. Build is success full but when i try to launch the application in browser. it keep showing alert *Attempt to refresh endless *

Am i missing any thing ?