I previously built my app in an Xcode 7 beta as my testing device is an iOS 9.0 device. I recently deleted Xcode 7 and began working on my app in Xcode 6.4 (not a beta). 6.4
Apps that you submit should be developed using the latest version of Xcode from the Mac App Store and should be built for publicly available versions of iOS, OS X, and watchOS — except when GM seeds are available. Now Mac App Store's Xcode is 6.4 and OS X Yosemite is Build 14F27. If you user xcode 6.4 on OS X El Capitan, you should follow the steps: