It keeps saying:
fatal error: file \'/Applications/Xcode5-DP5.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.0.sdk/usr/includ
This happen when compiling, when running the app or neither?
Have you tried this:
Build Settings - Build Locations - Precompiled Header Cache Path -- there's a folder... delete it.