ibtool builds storyboard in a backward-incompatible way if safe layout area guides are enabled and deployment target is 8.0
| Originator: | corrmage | ||
| Number: | rdar://33562924 | Date Originated: | 27-Jul-2017 11:04 AM |
| Status: | Open | Resolved: | |
| Product: | iOS + SDK | Product Version: | 11.0 (15A5327g) |
| Classification: | Crash/Hang/Data Loss | Reproducible: | Always |
Summary: ibtool builds storyboard in a backward-incompatible way if safe layout area guides are enabled and deployment target is 8.0 Application fails to load such a storyboard due to UILayoutGuide (introduced in iOS 9.0) objects. Steps to Reproduce: 1. Create an app from Single View App template in Xcode 9 2. Set deployment target to 8.0 3. Try to launch the app on iOS 8.x (simulator or real device) Expected Results: ibtool compiles the storyboard in a backward-compatible way & app launches. Actual Results: App crashes with the following stacktrace: #0 0x0000000104ad1b8a in objc_exception_throw () #1 0x0000000104e38b9d in +[NSException raise:format:] () #2 0x0000000105cf77cd in UINibDecoderDecodeObjectForValue () #3 0x0000000105cf7b25 in UINibDecoderDecodeObjectForValue () #4 0x0000000105cf768c in -[UINibDecoder decodeObjectForKey:] () #5 0x0000000105ba5338 in -[UINib instantiateWithOwner:options:] () #6 0x00000001059fd6d8 in -[UIViewController _loadViewFromNibNamed:bundle:] () #7 0x00000001059fdcc8 in -[UIViewController loadView] () #8 0x00000001059fdf39 in -[UIViewController loadViewIfRequired] () #9 0x00000001059fe3ce in -[UIViewController view] () #10 0x0000000105919289 in -[UIWindow addRootViewControllerViewIfPossible] () #11 0x000000010591964f in -[UIWindow _setHidden:forced:] () #12 0x0000000105925de1 in -[UIWindow makeKeyAndVisible] () #13 0x00000001058c9417 in -[UIApplication _callInitializationDelegatesForMainScene:transitionContext:] () #14 0x00000001058cc19e in -[UIApplication _runWithMainScene:transitionContext:completion:] () #15 0x00000001058cb095 in -[UIApplication workspaceDidEndTransaction:] () #16 0x0000000107a865e5 in __31-[FBSSerialQueue performAsync:]_block_invoke_2 () #17 0x0000000104d6c41c in __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ () #18 0x0000000104d62165 in __CFRunLoopDoBlocks () #19 0x0000000104d61f25 in __CFRunLoopRun () #20 0x0000000104d61366 in CFRunLoopRunSpecific () #21 0x00000001058cab02 in -[UIApplication _run] () #22 0x00000001058cd8c0 in UIApplicationMain () #23 0x0000000104597a1f in main #24 0x000000010746d145 in start () Version: 11.0 (15A5327g) Notes:
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