App Store submission problem: A pre-release beta version of the SDK was used to build the application

I upload my app to app store, I already build my 开发者_StackOverflow社区apps using device - 3.1 , which should be the a release version of app store. How can I avoid this warning? thz....

You can not use the Beta version of XCode to build, even when you build against an older SDK. You can install the Beta 3.2 and the official 3.1 in two different directories. This question was answered before btw.

You've answered your own question. You're using an SDK which is currently in beta, I'm assuming 3.2. Go to the Apple dev center and download the 3.1.3 SDK:

http://developer.apple.com/iphone

What version of Xcode and the iPhone SDK are you using? It sounds like you might be using an old (or very new) version of the build tools.