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Created April 17, 2017 21:51
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stack trace
Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
2017-04-17 14:50:53.193 TestApplicationiOS[47208:2635792]
Unhandled Exception:
System.NullReferenceException: Object reference not set to an instance of an object
at Xamarin.Forms.Platform.iOS.NavigationRenderer.GetAppearedOrDisappearedTask (Xamarin.Forms.Page page) [0x00011] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Renderers\NavigationRenderer.cs:394
at Xamarin.Forms.Platform.iOS.NavigationRenderer.RemoveViewControllers (System.Boolean animated) [0x00049] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Renderers\NavigationRenderer.cs:531
at Xamarin.Forms.Platform.iOS.NavigationRenderer.PopViewController (System.Boolean animated) [0x00000] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Renderers\NavigationRenderer.cs:115
at TestApplication.iOS.Renderers.CustomPageRenderer.<ViewWillAppear>b__0_0 (System.Object sender, System.EventArgs args) [0x00001] in C:\Users\jigarrid\Documents\_Bugs\38731 nav crash\app\TestApplication\TestApplicat
ion.iOS\Renderers\CustomPageRenderer.cs:21
at UIKit.UIBarButtonItem+Callback.Call (Foundation.NSObject sender) [0x00010] in /Users/builder/data/lanes/4466/a04678c2/source/xamarin-macios/src/UIKit/UIBarButtonItem.cs:30
--- End of stack trace from previous location where exception was thrown ---
at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Users/builder/data/lanes/4466/a04678c2/source/xamarin-macios/src/UIKit/UIApplication.cs:79
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00038] in /Users/builder/data/lanes/4466/a04678c2/source/xamarin-macios/src/UIKit/UIApplication.cs:63
at TestApplication.iOS.Application.Main (System.String[] args) [0x00001] in C:\Users\jigarrid\Documents\_Bugs\38731 nav crash\app\TestApplication\TestApplication.iOS\Main.cs:17
2017-04-17
14:50:53.195 TestApplicationiOS[47208:2635792] Unhandled managed exception:
Object reference not set to an instance of an object (System.NullReferenceException)
at Xamarin.Forms.Platform.iOS.NavigationRenderer.GetAppearedOrDisappearedTask (Xamarin.Forms.Page page) [0x00011] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Renderers\NavigationRenderer.cs:394
at Xamarin.Forms.Platform.iOS.NavigationRenderer.RemoveViewControllers (System.Boolean animated) [0x00049] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Renderers\NavigationRenderer.cs:531
at Xamarin.Forms.Platform.iOS.NavigationRenderer.PopViewController (System.Boolean animated) [0x00000] in C:\BuildAgent3\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Renderers\NavigationRenderer.cs:115
at TestApplication.iOS.Renderers.CustomPageRenderer.<ViewWillAppear>b__0_0 (System.Object sender, System.EventArgs args) [0x00001] in C:\Users\jigarrid\Documents\_Bugs\38731 nav crash\app\TestApplication\TestApplication
.iOS\Renderers\CustomPageRenderer.cs:21
at UIKit.UIBarButtonItem+Callback.Call (Foundation.NSObject sender) [0x00010] in /Users/builder/data/lanes/4466/a04678c2/source/xamarin-macios/src/UIKit/UIBarButtonItem.cs:30
--- End of stack trace from previous location where exception was thrown ---
at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Users/builder/data/lanes/4466/a04678c2/source/xamarin-macios/src/UIKit/UIApplication.cs:79
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00038] in /Users/builder/data/lanes/4466/a04678c2/source/xamarin-macios/src/UIKit/UIApplication.cs:63
at TestApplication.iOS.Application.Main (System.String[] args) [0x00001] in C:\Users\jigarrid\Documents\_Bugs\38731 nav crash\app\TestApplication\TestApplication.iOS\Main.cs:17
2017-04-17 14:
50:53.195 TestApplicationiOS[47208:2635792] critical: Stacktrace:
2017-04-17 14:50:53.195 TestApplicationiOS[47208:2635792] critical:
Native stacktrace:
2017-04-17 14:50:53.210 TestApplicationiOS[47208:2635792] critical: 0 TestApplicationiOS 0x000000010322d0fd mono_handle_native_sigsegv + 253
2017-04-17 14:50:53.210 TestApplicationiOS[47208:2635792] critical: 1 libsystem_platform.dylib 0x000000010ef85b3a _sigtramp + 26
2017-04-17 14:50:53.210 TestApplicationiOS[47208:2635792] critical: 2 ??? 0x00000001037d5574 0x0 + 4353512820
2017-04-17 14:50:53.211 TestApplicationiOS[47208:2635792] critical: 3 libsystem_c.dylib 0x000000010ec1e88f abort + 127
2017-04-17 14:50:53.211 TestApplicationiOS[47208:2635792] critical: 4 TestApplicationiOS 0x00000001033c5ddf xamarin_unhandled_exception_handler + 47
2017-04-17 14:50:53.211 TestApplicationiOS[47208:2635792] critical: 5 TestApplicationiOS 0
x000000010328c754 mono_invoke_unhandled_exception_hook + 148
2017-04-17 14:50:53.211 TestApplicationiOS[47208:2635792] critical: 6 TestApplicationiOS 0x000000010322cbe2 mono_handle_exception_internal + 4626
2017-04-17 14:50:53.212 TestApplicationiOS[47208:2635792] critical: 7 TestApplicationiOS 0x000000010322b9c8 mono_handle_exception + 24
2017-04-17 14:50:53.212 TestApplicationiOS[47208:2635792] critical: 8 TestApplicationiOS 0x00000001031a578f mono_amd64_throw_exception + 143
2017-04-17 14:50:53.212 TestApplicationiOS[47208:2635792] critical: 9 ??? 0x00000001237f49e7 0x0 + 4890511847
2017-04-17 14:50:53.212 TestApplicationiOS[47208:2635792] critical: 10 TestApplicationiOS 0x000000010311f753 _ZL32native_to_managed_trampoline_213P11objc_objectP13objc_selectorPP11_MonoMethodP8NSObjectj + 435
2017-04-17 14:50:53.213 TestApplicationiOS[47208:2635792] critical: 11 TestApplicationiOS 0x000000010311f598 -[UIKit_UIBarButtonItem_Callback InvokeAction:] + 56
2017-04-17 14:50:53.213 TestApplicationiOS[47208:2635792] critical: 12 UIKit 0x0000000107350d22 -[UIApplication sendAction:to:from:forEvent:] + 83
2017-04-17 14:50:53.213 TestApplicationiOS[47208:2635792] critical: 13 UIKit 0x000000010778b5c7 -[UIBarButtonItem(UIInternal) _sendAction:withEvent:] + 149
2017-04-17 14:50:53.213 TestApplicationiOS[47208:2635792] critical: 14 UIKit 0x0000000107350d22 -[UIApplication sendAction:to:from:forEvent:] + 83
2017-04-17 14:50:53.213 TestApplicationiOS[47208:2635792] critical:
15 UIKit 0x00000001074d525c -[UIControl sendAction:to:forEvent:] + 67
2017-04-17 14:50:53.214 TestApplicationiOS[47208:2635792] critical: 16 UIKit 0x00000001074d5577 -[UIControl _sendActionsForEvents:withEvent:] + 450
2017-04-17 14:50:53.214 TestApplicationiOS[47208:2635792] critical: 17 UIKit 0x00000001074d56eb -[UIControl _sendActionsForEvents:withEvent:] + 822
2017-04-17 14:50:53.214 TestApplicationiOS[47208:2635792] critical: 18 UIKit 0x00000001074d44b2 -[UIControl touchesEnded:withEvent:] + 618
2017-04-17 14:50:53.214 TestApplicationiOS[47208:2635792] critical: 19 UIKit 0x00000001073be49a -[UIWindow _sendTouchesForEvent:] + 2707
2017-04-17 14:50:53.214 TestApplicationiOS[47208:2635792] critical: 20 UIKit 0x00000001073bfbb0 -[UIWindow sendEvent:] + 4114
2017-04-17 14:50:53.215 TestApplicationiOS[47208:2635792] critica
l: 21 UIKit 0x000000010736c7b0 -[UIApplication sendEvent:] + 352
2017-04-17 14:50:53.215 TestApplicationiOS[47208:2635792] critical: 22 UIKit 0x0000000107b4fadc __dispatchPreprocessedEventFromEventQueue + 2926
2017-04-17 14:50:53.215 TestApplicationiOS[47208:2635792] critical: 23 UIKit 0x0000000107b47a3a __handleEventQueue + 1122
2017-04-17 14:50:53.215 TestApplicationiOS[47208:2635792] critical: 24 CoreFoundation 0x00000001039e0c01 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
2017-04-17 14:50:53.215 TestApplicationiOS[47208:2635792] critical: 25 CoreFoundation 0x00000001039c60cf __CFRunLoopDoSources0 + 527
2017-04-17 14:50:53.216 TestApplicationiOS[47208:2635792] critical: 26 CoreFoundation 0x00000001039c55ff __CFRunLoopRun + 911
2017-04-17 14:50:53.216 TestApplicationiOS[47208:2635792] critical: 27 CoreFoundation
0x00000001039c5016 CFRunLoopRunSpecific + 406
2017-04-17 14:50:53.216 TestApplicationiOS[47208:2635792] critical: 28 GraphicsServices 0x000000011120ea24 GSEventRunModal + 62
2017-04-17 14:50:53.216 TestApplicationiOS[47208:2635792] critical: 29 UIKit 0x000000010734f0d4 UIApplicationMain + 159
2017-04-17 14:50:53.216 TestApplicationiOS[47208:2635792] critical: 30 ??? 0x00000001271b154c 0x0 + 4951053644
2017-04-17 14:50:53.217 TestApplicationiOS[47208:2635792] critical: 31 ??? 0x00000001271b118d 0x0 + 4951052685
2017-04-17 14:50:53.217 TestApplicationiOS[47208:2635792] critical:
=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================
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