) does not have an ID with ID' '' > 2014-09-20 18: 04: 45.564 storyboar...">
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NSInvalidArgumentException ', Reason: "The receiver (<ViewController:>) does not have an ID with ID' ''

enter image description here > 2014-09-20 18: 04: 45.564 storyboard_demo [6919: 60b] nested push

animation can damage the navigation bar 2014-09-20 18: 04: 45.921 storyboard_demo [6919: 60b] Finished navigation transition in an unexpected state. The navigation bar in the navigation bar can get corrupted. 2014-09-20 18: 04: 46.442 storyboard_demo [6919: 60b] * Application terminated due to uncaught exception "NSInvalidArgumentException", reason: "Receiver () has no identifier with identifier 'in the third' '* First throw call stack: (0 0x017ed1e4 CoreFoundation exceptionPreprocess + 180 1 libobjc.A.dylib
0x0156c8e5 objc_exception_throw + 44 2 UIKit
0x0034d48c - [UIViewController mustPerformSegueWithIdentifier: sender:] 0 + 3 storyboard_demo
0x0000254e - [secondViewController btn_second:] + 110 4
libobjc.A.dylib 0x0157e880 - [NSObject performSelector: withObject: withObject:] + 77 5 UIKit
0x0022e3b9 - [UIApplication sendAction: to: from: forEvent:] + 108 6
UIKit 0x0022e345 - [UIApplication for sendEvent:] + 61 7 UIKit
0x0032fbd1 - [UIControl sendAction: to: forEvent:] + 66 8 UIKit
0x0032ffc6 - [UIControl _sendActionsForEvents: withEvent:] + 577 9
UIKit 0x0032f243 - [UIControl touchesEnded: with 1026
UIdorches :] + 852 11 UIKit
0x0026e9d1 - [UIWindow sendEvent:] + 1117 12 UIKit
0x002405f2 - [UIApplication sendEvent:] + 242 13 UIKit
0x0022a353 _UIApplicationHandleEventQueue + 11455 14 CoreFoundation 0x0177677f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 15 15 CoreFoundation 0x0177610b __CFRunLoopDoSources0 + 235 16 CoreFoundation 0x017931ae __CFRunLoopRun + 910 17 CoreFoundation
0x017929d3 CFRunLoopRunSpecific + 467 18 CoreFoundation
0x017927eb CFRunLoopRunInMode + 123 19 GraphicsServices
0x037e15ee GSEventRunModal + 192 20 GraphicsServices
0x037e142b GSEventRun + 104 21 UIKit
0x0022cf9b UIApplicationMain + 1225 22 storyboard_demo
0x00002e4d home + 141 23 libdyld.dylib
0x01e3470d start + 1 24 ??? 0x00000001 0x0 + 1) libc ++ abi.dylib: exit with non-mapped exception of type NSException

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Do this in two steps.



btn_second:

can post a notification that it was clicked and then go back to the "first" one. "first" gets notified and sets a flag. The viewWillAppear

"first" checks the flag and performs the "third" segue if set.

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