Testing bug tracker from HockeyApp - Fix NullReferenceException in VisualElementPackager.RemoveChild

[Narik1]

This bug has been in the app for a while, we should probably do something about that. The following is auto-generated by HockeyApp, so it's going to be long...

Version: SwinApp Test (1) | swinapp-android

Stacktrace

0 Xamarin.Forms.Platform.Android VisualElementPackager RemoveChild 1 Xamarin.Forms.Platform.Android VisualElementPackager OnChildRemoved 2 Xamarin.Forms Element OnChildRemoved 3 Xamarin.Forms VisualElement OnChildRemoved 4 Xamarin.Forms Layout OnInternalRemoved 5 Xamarin.Forms Layout InternalChildrenOnCollectionChanged 6 System.Collections.ObjectModel ObservableCollection`1[T] OnCollectionChanged 7 System.Collections.ObjectModel ObservableCollection`1[T] OnCollectionChanged 8 System.Collections.ObjectModel ObservableCollection`1[T] RemoveItem 9 System.Collections.ObjectModel Collection`1[T] Remove 10 Xamarin.Forms TemplateUtilities OnContentChanged 11 Xamarin.Forms BindableObject SetValueActual 12 Xamarin.Forms BindableObject SetValueCore 13 Xamarin.Forms BindingExpression ApplyCore 14 Xamarin.Forms BindingExpression Apply 15 Xamarin.Forms Binding Apply 16 Xamarin.Forms BindableObject ApplyBindings 17 Xamarin.Forms BindableObject ApplyBindings 18 Xamarin.Forms BindableObject SetInheritedBindingContext 19 Xamarin.Forms Element SetChildInheritedBindingContext 20 Xamarin.Forms Element OnBindingContextChanged 21 Xamarin.Forms View OnBindingContextChanged 22 Xamarin.Forms BindableObject SetInheritedBindingContext 23 Xamarin.Forms Element SetChildInheritedBindingContext 24 Xamarin.Forms TemplatedView SetChildInheritedBindingContext 25 Xamarin.Forms Element OnBindingContextChanged 26 Xamarin.Forms View OnBindingContextChanged 27 Xamarin.Forms ContentView OnBindingContextChanged 28 Xamarin.Forms BindableObject SetInheritedBindingContext 29 Xamarin.Forms Element SetChildInheritedBindingContext 30 Xamarin.Forms Element OnBindingContextChanged 31 Xamarin.Forms View OnBindingContextChanged 32 Xamarin.Forms Grid OnBindingContextChanged 33 Xamarin.Forms BindableObject SetInheritedBindingContext 34 Xamarin.Forms Element SetChildInheritedBindingContext 35 Xamarin.Forms Element OnBindingContextChanged 36 Xamarin.Forms Cell OnBindingContextChanged 37 Xamarin.Forms BindableObject BindingContextPropertyBindingPropertyChanged 38 Xamarin.Forms BindableObject SetValueActual 39 Xamarin.Forms BindableObject SetValueCore 40 Xamarin.Forms BindableObject SetValue 41 Xamarin.Forms BindableObject SetValue 42 Xamarin.Forms BindableObject set_BindingContext 43 Xamarin.Forms TemplatedItemsList`2+d__153[TView,TItem] MoveNext 44 System.Runtime.ExceptionServices ExceptionDispatchInfo Throw 45 System.Runtime.CompilerServices AsyncMethodBuilderCore+<>c b__6_0 46 Android.App SyncContext+<>c__DisplayClass2_0 b__0 47 Java.Lang Thread+RunnableImplementor Run 48 Java.Lang IRunnableInvoker n_Run 49 mono.java.lang RunnableImplementor n_run 50 mono.java.lang RunnableImplementor run 51 android.os Handler handleCallback 52 android.os Handler dispatchMessage 53 android.os Looper loop 54 android.app ActivityThread main 55 java.lang.reflect Method invoke 56 com.android.internal.os ZygoteInit$MethodAndArgsCaller run 57 com.android.internal.os ZygoteInit main Java.Lang.Thread 2 

Reason

android.runtime.JavaProxyThrowable: System.NullReferenceException: Object reference not set to an instance of an object

Link to HockeyApp

• https://rink.hockeyapp.net/manage/apps/593710/app_versions/2/crash_reasons/188865300