上傳到app store

Missing recommended icon file - The bundle does not contain an app icon for iPhone / iPod Touch of exactly '120x120' pixels, in .png format.

Missing recommended icon file - The bundle does not contain an app icon for iPad of exactly '76x76' pixels, in .png format.

Missing recommended icon file - The bundle does not contain an app icon for iPad of exactly '152x152' pixels, in .png format.

我上傳之後遇到的問題，我的air 已經升級到最新的版本．．．sdk 也都升級到3.9.0.1200 了，但還是無法新增這三個尺寸．．．

誰能幫幫我！