Bug 40154 - Random System.NotSupportedException on Android: Unable to activate instance of type Xamarin.Forms.Platform.Android.[VARIOUS_TYPES]
Summary: Random System.NotSupportedException on Android: Unable to activate instance o...
Status: RESOLVED NOT_REPRODUCIBLE
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: 2.2.0
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2016-04-06 13:03 UTC by René
Modified: 2016-06-01 18:49 UTC (History)
8 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED NOT_REPRODUCIBLE

Description René 2016-04-06 13:03:12 UTC
I'm seeing this random exceptions on Android with Forms 2.2.0.4 pre 1. I have no further information how to replicate.

* System.NotSupportedException: Unable to activate instance of type Xamarin.Forms.Platform.Android.GenericAnimatorListener
* System.NotSupportedException: Unable to activate instance of type Xamarin.Forms.Platform.Android.Platform+DefaultRenderer

Stack traces:

System.NotSupportedException: Unable to activate instance of type Xamarin.Forms.Platform.Android.GenericAnimatorListener from native handle 0xb32f6a2c (key_handle 0x27777bf6). ---> System.MissingMethodException: No constructor found for Xamarin.Forms.Platform.Android.GenericAnimatorListener::.ctor(System.IntPtr, Android.Runtime.JniHandleOwnership) ---> Java.Interop.JavaLocationException: Exception of type 'Java.Interop.JavaLocationException' was thrown.
  at Java.Lang.Error: Exception of type 'Java.Lang.Error' was thrown.
  at --- End of managed exception stack trace ---
  at java.lang.Error: Java callstack:
  at at md5b60ffeb829f638581ab2bb9b1a7f4f3f.GenericAnimatorListener.n_finalize(Native Method)
  at at md5b60ffeb829f638581ab2bb9b1a7f4f3f.GenericAnimatorListener.finalize(GenericAnimatorListener.java:56)
  at at java.lang.Daemons$FinalizerDaemon.doFinalize(Daemons.java:191)
  at at java.lang.Daemons$FinalizerDaemon.run(Daemons.java:174)
  at at java.lang.Thread.run(Thread.java:818)
  --- End of inner exception stack trace ---
  at Java.Interop.TypeManager.CreateProxy (System.Type type, IntPtr handle, JniHandleOwnership transfer) [0x00039] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Interop/TypeManager.cs:304
  at Java.Interop.TypeManager.CreateInstance (IntPtr handle, JniHandleOwnership transfer, System.Type targetType) [0x00138] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Interop/TypeManager.cs:282
  --- End of inner exception stack trace ---
  at Java.Interop.TypeManager.CreateInstance (IntPtr handle, JniHandleOwnership transfer, System.Type targetType) [0x00186] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Interop/TypeManager.cs:289
  at Java.Lang.Object.GetObject (IntPtr handle, JniHandleOwnership transfer, System.Type type) [0x000e5] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:459
  at Java.Lang.Object._GetObject[T] (IntPtr handle, JniHandleOwnership transfer) [0x0001a] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:430
  at Java.Lang.Object.GetObject[T] (IntPtr handle, JniHandleOwnership transfer) [0x00000] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:422
  at Java.Lang.Object.GetObject[T] (IntPtr jnienv, IntPtr handle, JniHandleOwnership transfer) [0x00006] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:416
  at Java.Lang.Object.n_JavaFinalize (IntPtr jnienv, IntPtr native__this) [0x00000] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Java.Lang.Object.cs:121
  at at (wrapper dynamic-method) System.Object:2b7b0813-05d5-4181-b31c-c9988c3940d6 (intptr,intptr)



System.NotSupportedException: Unable to activate instance of type Xamarin.Forms.Platform.Android.Platform+DefaultRenderer from native handle 0xbf8e1030 (key_handle 0x1177de8a). ---> System.MissingMethodException: No constructor found for Xamarin.Forms.Platform.Android.Platform+DefaultRenderer::.ctor(System.IntPtr, Android.Runtime.JniHandleOwnership) ---> Java.Interop.JavaLocationException: Exception of type 'Java.Interop.JavaLocationException' was thrown.
  at Java.Lang.Error: Exception of type 'Java.Lang.Error' was thrown.
  at --- End of managed exception stack trace ---
  at java.lang.Error: Java callstack:
  at at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementTracker_AttachTracker.n_onViewDetachedFromWindow(Native Method)
  at at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementTracker_AttachTracker.onViewDetachedFromWindow(VisualElementTracker_AttachTracker.java:39)
  at at android.view.View.dispatchDetachedFromWindow(View.java:13572)
  at at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:2837)
  at at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:2834)
  at at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:2834)
  at at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:2834)
  at at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:2834)
  at at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:2834)
  at at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:2834)
  at at android.view.ViewGroup.removeViewInternal(ViewGroup.java:4220)
  at at android.view.ViewGroup.removeViewInternal(ViewGroup.java:4193)
  at at android.view.ViewGroup.removeView(ViewGroup.java:4124)
  at at md5270abb39e60627f0f200893b490a1ade.FragmentContainer.n_onDestroyView(Native Method)
  at at md5270abb39e60627f0f200893b490a1ade.FragmentContainer.onDestroyView(FragmentContainer.java:59)
  at at android.support.v4.app.Fragment.performDestroyView(Fragment.java:2167)
  at at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1141)
  at at android.support.v4.app.FragmentManagerImpl.removeFragment(FragmentManager.java:1345)
  at at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:708)
  at at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1613)
  at at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:517)
  at at android.os.Handler.handleCallback(Handler.java:739)
  at at android.os.Handler.dispatchMessage(Handler.java:95)
  at at android.os.Looper.loop(Looper.java:135)
  at at android.app.ActivityThread.main(ActivityThread.java:5254)
  at at java.lang.reflect.Method.invoke(Native Method)
  at at java.lang.reflect.Method.invoke(Method.java:372)
  at at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
  at at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
  --- End of inner exception stack trace ---
  at Java.Interop.TypeManager.CreateProxy (System.Type type, IntPtr handle, JniHandleOwnership transfer) [0x00039] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Interop/TypeManager.cs:304
  at Java.Interop.TypeManager.CreateInstance (IntPtr handle, JniHandleOwnership transfer, System.Type targetType) [0x00138] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Interop/TypeManager.cs:282
  --- End of inner exception stack trace ---
  at Java.Interop.TypeManager.CreateInstance (IntPtr handle, JniHandleOwnership transfer, System.Type targetType) [0x00186] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Interop/TypeManager.cs:289
  at Java.Lang.Object.GetObject (IntPtr handle, JniHandleOwnership transfer, System.Type type) [0x000e5] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:459
  at Java.Lang.Object._GetObject[T] (IntPtr handle, JniHandleOwnership transfer) [0x0001a] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:430
  at Java.Lang.Object.GetObject[T] (IntPtr handle, JniHandleOwnership transfer) [0x00000] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/src/Java.Lang/Object.cs:422
  at Android.Views.View+IOnAttachStateChangeListenerInvoker.n_OnViewDetachedFromWindow_Landroid_view_View_ (IntPtr jnienv, IntPtr native__this, IntPtr native_detachedView) [0x00009] in /Users/builder/data/lanes/2923/a908ff16/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Android.Views.View.cs:1647
  at at (wrapper dynamic-method) System.Object:3d4b146d-39b7-490d-a203-ab7cdee3b4ae (intptr,intptr,intptr)


=== Xamarin Studio ===

Version 6.0 (build 4801)
Installation UUID: 7a127b8e-364a-4453-8b18-e87f614b7d80
Runtime:
	Mono 4.4.0 (mono-4.4.0-branch/f8474c4) (64-bit)
	GTK+ 2.24.23 (Raleigh theme)

	Package version: 404000040

=== Xamarin.Profiler ===

Version: 0.0.0.0
Location: /Applications/XamarinProfiler.Mac.app/Contents/MacOS/XamarinProfiler.Mac

=== Apple Developer Tools ===

Xcode 7.3 (10183.3)
Build 7D175

=== Xamarin.iOS ===

Version: 9.8.0.156 (Business Edition)
Hash: f51047c
Branch: cycle7
Build date: 2016-03-25 02:13:42-0400

=== Xamarin.Android ===

Version: 6.1.0.16 (Business Edition)
Android SDK: /Users/rene/Library/Developer/Xamarin/android-sdk-macosx
	Supported Android versions:
		4.4 (API level 19)
		5.0 (API level 21)
		5.1 (API level 22)
		6.0 (API level 23)

SDK Tools Version: 24.4.1
SDK Platform Tools Version: 23.1
SDK Build Tools Version: 23.0.3

Java SDK: /usr
java version "1.7.0_71"
Java(TM) SE Runtime Environment (build 1.7.0_71-b14)
Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode)

Android Designer EPL code available here:
https://github.com/xamarin/AndroidDesigner.EPL

=== Xamarin Android Player ===

Version: 0.6.5
Location: /Applications/Xamarin Android Player.app

=== Xamarin.Mac ===

Version: 2.8.0.58 (Business Edition)

=== Xamarin Inspector ===

Version: 0.7.0.0
Hash: 2a5f6e9
Branch: master
Build date: Thu Mar 31 18:37:26 UTC 2016

=== Build Information ===

Release ID: 600004801
Git revision: f73f730c738baf8701a5892b7af64fd468d1dc0c
Build date: 2016-03-14 14:28:06-04
Xamarin addins: 3af7be6c701eb0137645a03e38b82f23b65738c3
Build lane: monodevelop-lion-cycle7

=== Operating System ===

Mac OS X 10.11.4
Darwin iMacRR.fritz.box 15.4.0 Darwin Kernel Version 15.4.0
    Fri Feb 26 22:08:05 PST 2016
    root:xnu-3248.40.184~3/RELEASE_X86_64 x86_64

=== Enabled user installed addins ===

Xamarin Inspector 0.7.0.0
Comment 3 René 2016-04-09 21:41:54 UTC
I updated to Forms 2.2.0.5 Pre2 and also downgraded to Beta and haven't seen a single one of those crashes today. Closing for now.
Comment 4 albertoms 2016-04-20 16:00:43 UTC
This bug is causing my app crashes after upgrading Xamarin.Forms - I'm testing on two dveices: one with Lillipop and other with Kit Kat. The crash only happens when I run my app on the device running Kit Kat 4.4.2. Although the crash doesn't ocurr with Xamarin Android Player running an emulator with Kit Kat.

This is the output in the crash report:

Unable to activate instance of type Xamarin.Forms.Platform.Android.GenericAnimatorListener from native handle 0x47800001 (key_handle 0x421209b0).

No constructor found for Xamarin.Forms.Platform.Android.GenericAnimatorListener::.ctor(System.IntPtr, Android.Runtime.JniHandleOwnership)
Comment 5 adrianknight89 2016-04-26 03:26:21 UTC
I created a repro of a similar issue in another thread. Looks like many people are affected by this problem.

Please see: https://bugzilla.xamarin.com/show_bug.cgi?id=40692
Comment 6 philip 2016-04-26 16:05:32 UTC
same problem for me:

04-26 12:00:30.186 I/MonoDroid( 4511): UNHANDLED EXCEPTION:
04-26 12:00:30.186 I/MonoDroid( 4511): System.NotSupportedException: Unable to activate instance of type TDSP.Controls.Droid.ImageCircleRenderer from native handle 0xbfad29ac (key_handle 0x390c1bcc). ---> System.MissingMethodException: No constructor found for TDSP.Controls.Droid.ImageCircleRenderer::.ctor(System.IntPtr, Android.Runtime.JniHandleOwnership) ---> Java.Interop.JavaLocationException: Exception of type 'Java.Interop.JavaLocationException' was thrown.
04-26 12:00:30.186 I/MonoDroid( 4511): Java.Lang.Error: Exception of type 'Java.Lang.Error' was thrown.
04-26 12:00:30.186 I/MonoDroid( 4511):   --- End of managed exception stack trace ---
04-26 12:00:30.186 I/MonoDroid( 4511): java.lang.Error: Java callstack:
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ViewRenderer_2.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ViewRenderer_2.onLayout(ViewRenderer_2.java:47)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ViewRenderer_2.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ViewRenderer_2.onLayout(ViewRenderer_2.java:47)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ScrollViewContainer.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ScrollViewContainer.onLayout(ScrollViewContainer.java:54)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.ScrollView.onLayout(ScrollView.java:1502)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ScrollViewRenderer.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.ScrollViewRenderer.onLayout(ScrollViewRenderer.java:99)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.VisualElementRenderer_1.onLayout(VisualElementRenderer_1.java:49)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.xamarin.forms.platform.android.FormsViewGroup.measureAndLayout(FormsViewGroup.java:29)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.PlatformRenderer.n_onLayout(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at md5b60ffeb829f638581ab2bb9b1a7f4f3f.PlatformRenderer.onLayout(PlatformRenderer.java:63)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1692)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.LinearLayout.onLayout(LinearLayout.java:1468)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.android.internal.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:494)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.View.layout(View.java:15671)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewGroup.layout(ViewGroup.java:5038)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2086)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1843)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1061)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5885)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.Choreographer.doCallbacks(Choreographer.java:580)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.Choreographer.doFrame(Choreographer.java:550)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.os.Handler.handleCallback(Handler.java:739)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.os.Handler.dispatchMessage(Handler.java:95)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.os.Looper.loop(Looper.java:135)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at android.app.ActivityThread.main(ActivityThread.java:5254)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at java.lang.reflect.Method.invoke(Native Method)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at java.lang.reflect.Method.invoke(Method.java:372)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
04-26 12:00:30.186 I/MonoDroid( 4511): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
04-26 12:00:30.186 I/MonoDroid( 4511):   --- End of inner exception stack trace ---
04-26 12:00:30.186 I/MonoDroid( 4511):   at Java.Interop.TypeManager.CreateProxy (System.Type type, IntPtr handle, JniHandleOwnership transfer) [0x00039] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Java.Interop/TypeManager.cs:304 
04-26 12:00:30.186 I/MonoDroid( 4511):   at Java.Interop.TypeManager.CreateInstance (IntPtr handle, JniHandleOwnership transfer, System.Type targetType) [0x00138] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Java.Interop/TypeManager.cs:282 
04-26 12:00:30.186 I/MonoDroid( 4511):   --- End of inner exception stack trace ---
04-26 12:00:30.186 I/MonoDroid( 4511):   at (wrapper dynamic-method) System.Object:64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int)
04-26 12:00:30.186 I/MonoDroid( 4511):   at (wrapper native-to-managed) System.Object:64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,int,int,int,int,int)
04-26 12:00:30.186 I/MonoDroid( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods:java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*)
04-26 12:00:30.186 I/MonoDroid( 4511):   at Java.Interop.JniEnvironment+InstanceMethods.CallNonvirtualVoidMethod (JniObjectReference instance, JniObjectReference type, Java.Interop.JniMethodInfo method, Java.Interop.JniArgumentValue* args) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079 
04-26 12:00:30.186 I/MonoDroid( 4511):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (IntPtr jobject, IntPtr jclass, IntPtr jmethod, Android.Runtime.JValue* parms) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444 
04-26 12:00:30.186 I/MonoDroid( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.MeasureAndLayout (Int32 p0, Int32 p1, Int32 p2, Int32 p3, Int32 p4, Int32 p5) [0x000d5] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:223 
04-26 12:00:30.186 I/MonoDroid( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x000a2] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:89 
04-26 12:00:30.186 I/MonoDroid( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1[TElement].UpdateLayout () [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:137 
04-26 12:00:30.186 I/MonoDroid( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1[TElement].OnLayout (Boolean changed, Int32 l, Int32 t, Int32 r, Int32 b) [0x00039] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:310 
04-26 12:00:30.186 I/MonoDroid( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.n_OnLayout_ZIIII (IntPtr jnienv, IntPtr native__this, Boolean p0, Int32 p1, Int32 p2, Int32 p3, Int32 p4) [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:240 
04-26 12:00:30.186 I/MonoDroid( 4511):   at (wrapper dynamic-method) System.Object:64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int)
04-26 12:00:30.186 E/mono-rt ( 4511): Stacktrace:
04-26 12:00:30.186 E/mono-rt ( 4511): 
04-26 12:00:30.186 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.186 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_new_string (intptr,intptr&,char*,int) <0x00012>
04-26 12:00:30.186 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/Strings.NewString (char*,int) [0x0000a] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:13019
04-26 12:00:30.186 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/Strings.NewString (string) [0x00028] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.Strings.cs:15
04-26 12:00:30.186 E/mono-rt ( 4511):   at Android.Runtime.JNIEnv.NewString (string) [0x0000c] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.cs:893
04-26 12:00:30.186 E/mono-rt ( 4511):   at Java.Lang.Throwable..ctor (string) [0x00022] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Java.Lang.Throwable.cs:47
04-26 12:00:30.186 E/mono-rt ( 4511):   at Android.Runtime.JavaProxyThrowable..ctor (System.Exception) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JavaProxyThrowable.cs:10
04-26 12:00:30.186 E/mono-rt ( 4511):   at Java.Lang.Throwable.FromException (System.Exception) [0x00023] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Java.Lang/Throwable.cs:217
04-26 12:00:30.186 E/mono-rt ( 4511):   at Android.Runtime.AndroidEnvironment.UnhandledException (System.Exception) [0x0007e] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/AndroidEnvironment.cs:116
04-26 12:00:30.186 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int) <IL 0x00047, 0x0009b>
04-26 12:00:30.186 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.186 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.186 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.186 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.186 E/mono-rt ( 4511):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (intptr,intptr,intptr,Android.Runtime.JValue*) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444
04-26 12:00:30.186 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.MeasureAndLayout (int,int,int,int,int,int) [0x000d5] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:223
04-26 12:00:30.186 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x000a2] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:89
04-26 12:00:30.186 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.UpdateLayout () [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:137
04-26 12:00:30.186 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.OnLayout (bool,int,int,int,int) [0x00039] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:310
04-26 12:00:30.186 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.n_OnLayout_ZIIII (intptr,intptr,bool,int,int,int,int) [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:240
04-26 12:00:30.186 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int) <IL 0x0002f, 0x0005b>
04-26 12:00:30.186 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.186 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (intptr,intptr,intptr,Android.Runtime.JValue*) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.MeasureAndLayout (int,int,int,int,int,int) [0x000d5] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:223
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x000a2] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:89
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.UpdateLayout () [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:137
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.OnLayout (bool,int,int,int,int) [0x00039] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:310
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.n_OnLayout_ZIIII (intptr,intptr,bool,int,int,int,int) [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:240
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int) <IL 0x0002f, 0x0005b>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.187 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (intptr,intptr,intptr,Android.Runtime.JValue*) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.MeasureAndLayout (int,int,int,int,int,int) [0x000d5] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:223
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x000a2] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:89
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.UpdateLayout () [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:137
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.OnLayout (bool,int,int,int,int) [0x00039] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:310
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.n_OnLayout_ZIIII (intptr,intptr,bool,int,int,int,int) [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:240
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int) <IL 0x0002f, 0x0005b>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.187 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (intptr,intptr,intptr,Android.Runtime.JValue*) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.MeasureAndLayout (int,int,int,int,int,int) [0x000d5] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:223
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x000a2] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:89
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.UpdateLayout () [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:137
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.OnLayout (bool,int,int,int,int) [0x00039] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:310
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.n_OnLayout_ZIIII (intptr,intptr,bool,int,int,int,int) [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:240
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int) <IL 0x0002f, 0x0005b>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.187 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (intptr,intptr,intptr,Android.Runtime.JValue*) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.MeasureAndLayout (int,int,int,int,int,int) [0x000d5] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:223
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x000a2] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:89
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.UpdateLayout () [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:137
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.OnLayout (bool,int,int,int,int) [0x00039] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:310
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.ViewRenderer`2<TView_REF, TNativeView_REF>.OnLayout (bool,int,int,int,int) [0x00000] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\ViewRenderer.cs:116
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.n_OnLayout_ZIIII (intptr,intptr,bool,int,int,int,int) [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:240
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int) <IL 0x0002f, 0x0005b>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.187 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (intptr,intptr,intptr,Android.Runtime.JValue*) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.MeasureAndLayout (int,int,int,int,int,int) [0x000d5] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:223
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x000a2] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:89
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.UpdateLayout () [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:137
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.ScrollViewContainer.OnLayout (bool,int,int,int,int) [0x00014] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\Renderers\ScrollViewContainer.cs:61
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Views.ViewGroup.n_OnLayout_ZIIII (intptr,intptr,bool,int,int,int,int) [0x00009] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Android.Views.ViewGroup.cs:3427
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.4911227f-ade2-4e73-8afc-5e11765ded9f (intptr,intptr,bool,int,int,int,int) <IL 0x0002f, 0x0005b>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.4911227f-ade2-4e73-8afc-5e11765ded9f (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.187 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniPeerMembers/JniInstanceMethods.InvokeVirtualVoidMethod (string,Java.Interop.IJavaPeerable,Java.Interop.JniArgumentValue*) [0x00068] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniPeerMembers.JniInstanceMethods_Invoke.cs:31
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Widget.FrameLayout.OnLayout (bool,int,int,int,int) [0x0006b] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Android.Widget.FrameLayout.cs:579
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.ScrollViewRenderer.OnLayout (bool,int,int,int,int) [0x00000] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\Renderers\ScrollViewRenderer.cs:185
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Widget.FrameLayout.n_OnLayout_ZIIII (intptr,intptr,bool,int,int,int,int) [0x00009] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Android.Widget.FrameLayout.cs:563
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.f892751f-4ed7-43c4-a374-092db7f94dbe (intptr,intptr,bool,int,int,int,int) <IL 0x0002f, 0x0005b>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.f892751f-4ed7-43c4-a374-092db7f94dbe (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.187 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniPeerMembers/JniInstanceMethods.InvokeNonvirtualVoidMethod (string,Java.Interop.IJavaPeerable,Java.Interop.JniArgumentValue*) [0x00022] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniPeerMembers.JniInstanceMethods_Invoke.cs:41
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Views.ViewGroup.Layout (int,int,int,int) [0x00055] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Android.Views.ViewGroup.cs:3188
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x00090] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:83
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.ScrollViewRenderer.UpdateLayout () [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\Renderers\ScrollViewRenderer.cs:88
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementRenderer`1<TElement_REF>.OnLayout (bool,int,int,int,int) [0x00039] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:310
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.n_OnLayout_ZIIII (intptr,intptr,bool,int,int,int,int) [0x00008] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:240
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper dynamic-method) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,bool,int,int,int,int) <IL 0x0002f, 0x0005b>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper native-to-managed) object.64aa7b81-5e49-4a1d-8d3e-e0c713f93123 (intptr,intptr,int,int,int,int,int) <IL 0x0002e, 0x000c3>
04-26 12:00:30.187 E/mono-rt ( 4511):   at <unknown> <0xffffffff>
04-26 12:00:30.187 E/mono-rt ( 4511):   at (wrapper managed-to-native) Java.Interop.NativeMethods.java_interop_jnienv_call_nonvirtual_void_method_a (intptr,intptr&,intptr,intptr,intptr,Java.Interop.JniArgumentValue*) <0x00012>
04-26 12:00:30.187 E/mono-rt ( 4511):   at Java.Interop.JniEnvironment/InstanceMethods.CallNonvirtualVoidMethod (Java.Interop.JniObjectReference,Java.Interop.JniObjectReference,Java.Interop.JniMethodInfo,Java.Interop.JniArgumentValue*) [0x0008f] in /Users/builder/data/lanes/2923/b4be22e9/source/Java.Interop/src/Java.Interop/Java.Interop/JniEnvironment.g.cs:12079
04-26 12:00:30.187 E/mono-rt ( 4511):   at Android.Runtime.JNIEnv.CallNonvirtualVoidMethod (intptr,intptr,intptr,Android.Runtime.JValue*) [0x00000] in /Users/builder/data/lanes/2923/b4be22e9/source/monodroid/src/Mono.Android/src/Runtime/JNIEnv.g.cs:444
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.FormsViewGroup.MeasureAndLayout (int,int,int,int,int,int) [0x000d5] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android.FormsViewGroup\obj\Release\generated\src\Xamarin.Forms.Platform.Android.FormsViewGroup.cs:223
04-26 12:00:30.187 E/mono-rt ( 4511):   at Xamarin.Forms.Platform.Android.VisualElementTracker.UpdateLayout () [0x000a2] in C:\BuildAgent2\work\aad494dc9bc9783\Xamarin.Forms.Platform.Android\VisualElementTracker.cs:89
04-26 12:00:30.191 E/mono-rt ( 4511):  at _ZN3art20CurrentMethodVisitor10VisitFrameEv+40 [0xb3a4cd98]
04-26 12:00:30.191 E/mono-rt ( 4511):  at _ZN3art12StackVisitor9WalkStackEb+245 [0xb3a4b945]
04-26 12:00:30.191 E/mono-rt ( 4511):  at _ZNK3art6Thread16GetCurrentMethodEPjb+111 [0xb3a4de2f]
04-26 12:00:30.191 E/mono-rt ( 4511):  at _ZN3artL8JniAbortEPKcS1_+1035 [0xb376922b]
04-26 12:00:30.191 E/mono-rt ( 4511):  at _ZN3art9JniAbortFEPKcS1_z+98 [0xb3769fa2]
04-26 12:00:30.191 E/mono-rt ( 4511):  at _ZN3art11ScopedCheck11CheckThreadEi+2093 [0xb376fe4d]
04-26 12:00:30.191 E/mono-rt ( 4511):  at _ZN3art11ScopedCheckC2EP7_JNIEnviPKc+1095 [0xb3770837]
04-26 12:00:30.191 E/mono-rt ( 4511):  at _ZN3art8CheckJNI9NewStringEP7_JNIEnvPKti+75 [0xb3775cfb]
04-26 12:00:30.191 E/mono-rt ( 4511):  at java_interop_jnienv_new_string+50 [0xb27c196f]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x993479df]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x993477c7]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x99337f6b]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x99337def]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x991d63b7]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x991d618b]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x991d60e7]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x991d4f27]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x99360cd3]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0x97192e5b]
04-26 12:00:30.191 E/mono-rt ( 4511):  at ???+50 [0xa2fe284f]
04-26 12:00:30.192 E/mono-rt ( 4511):  at ???+50 [0x9a2ee1fe]
04-26 12:00:30.192 E/mono-rt ( 4511): 
04-26 12:00:30.192 E/mono-rt ( 4511): =================================================================
04-26 12:00:30.192 E/mono-rt ( 4511): Got a SIGSEGV while executing native code. This usually indicates
04-26 12:00:30.192 E/mono-rt ( 4511): a fatal error in the mono runtime or one of the native libraries 
04-26 12:00:30.192 E/mono-rt ( 4511): used by your application.
04-26 12:00:30.192 E/mono-rt ( 4511): =================================================================
04-26 12:00:30.192 E/mono-rt ( 4511): 
04-26 12:00:30.192 F/libc    ( 4511): Fatal signal 11 (SIGSEGV), code 1, fault addr 0x2a in tid 4511 (m.ptdsp.android)