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xcode - iOS5 Storyboard error: Storyboards are unavailable on iOS 4.3 and prior

I've built a small app using storyboards and it ran great. Just before final testing I decided to try it out to see if it runs on iOS 4.3. I clicked on the gray 5.0 in the project settings and selected 4.3.

The app failed to build with the following error message:

Storyboards are unavailable on iOS 4.3 and prior

Both the iPhone and iPad storyboards tell me that.

The issue that when I switched back to iOS5 target, I still keep getting these errors from both storyboards, and the product won't build! I checked: iOS Deployment target in projects settings is 5.0 Target app deployment target is 5.0 Build settings uses iOS 5.0 SDK

What else do I need to do to restore my project to a buildable state? Is this a brand new bug or am I forgetting something?

Update: I kept getting this error even after doing a clean. I changed the debugger in Schemes to "LLDB" and did an additional clean, the project now builds and compiles

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I also got this problem and finally I solved this by following procedure:

  1. Open XXXXXX.storyboard
  2. Open Identity and Type tab in your right view of Xcode.
  3. Set the value of Development in Document Versioning to "Xcode 4.2" (my default value is "Default Version (Xcode 4.1)".
  4. Change the value of Deployment from Project SDK Version (iOS 5.0) to iOS 5.0, then back to Project SDK Version (iOS 5.0)

Rebuild the project and the error should be resolved.


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