title: ios SDK 4.3 on Xcode 4.2?
body: <p>I have upgraded to Xcode 4.2 Beta with iOS SDK 5, however, it turned out that the apps built in SDK 5 are not accepted by app store, although the target is set to be 4.0.</p>
  
  <p>Since sdk 4.3 seems to be downloaded with Xcode 4, but I still want to keep the newer Xcode, how can I import SDK 4.3 in Xcode 4.2?</p>
  
  <p>(I tried to reinstall the Xcode 4 with SDK 4.3, but a lot of crashes and errors with no luck. I am also on iTune 10.5.)</p>