WP7 IRNPCObservableForProperty & POCOObservableForProperty

Since using version 4.4 my WP7 projects were crashing: on assigning the .Router property of a RoutedViewHost I was getting a MethodAccessException "Attempt to access the method failed: ReactiveUI.IRNPCObservableForProperty..ctor()" (Using Ninject for IoC.)

The IRNPCObservableForProperty and POCOObservableForProperty classes are both internal; unlike INPCObservableForProperty which is already public. Setting the other two classes both to public fixes the crash.

[anaisbetts]

Can you give me a call stack?

Sure, can also upload a sample project if needed.

Attempt to access the method failed: ReactiveUI.IRNPCObservableForProperty..ctor()
   at System.Reflection.RuntimeConstructorInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, StackCrawlMark& stackMark)
   at System.Reflection.ConstructorInfo.Invoke(Object[] parameters)
   at Ninject.Injection.ReflectionInjectorFactory.<>c__DisplayClass1.<Create>b__0(Object[] args)
   at Ninject.Activation.Providers.StandardProvider.Create(IContext context)
   at Ninject.Activation.Context.Resolve()
   at Ninject.KernelBase.<>c__DisplayClasse.<Resolve>b__a(IBinding binding)
   at System.Linq.Enumerable.<SelectIterator>d__d`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at ReactiveUI.RxApp.GetAllServices(Type type, String key)
   at ReactiveUI.RxApp.GetAllServices[T](String key)
   at ReactiveUI.ReactiveNotifyPropertyChangedMixin.<.cctor>b__13(Tuple`2 t, Object _)
   at ReactiveUI.MemoizingMRUCache`2.Get(Tuple`2 key, Object context)
   at ReactiveUI.MemoizingMRUCache`2.Get(Tuple`2 key)
   at ReactiveUI.ReactiveNotifyPropertyChangedMixin.notifyForProperty(Object sender, String propertyName, Boolean beforeChange)
   at ReactiveUI.ReactiveNotifyPropertyChangedMixin.nestedObservedChanges(String propertyName, IObservedChange`2 sourceChange, Boolean beforeChange)
   at ReactiveUI.ReactiveNotifyPropertyChangedMixin.<>c__DisplayClassb`2.<>c__DisplayClassd.<SubscribeToExpressionChain>b__6(IObservedChange`2 y)
   at System.Reactive.Linq.Observable.Select`2._.OnNext(IObservedChange`2 value)
   at System.Reactive.Linq.Observable.Switch`1._.?.OnNext(IObservedChange`2 value)
   at System.Reactive.Linq.Observable.Concat`1._.OnNext(IObservedChange`2 value)
   at System.Reactive.Linq.Observable.Select`2._.OnNext(IObservedChange`2 value)
   at System.Reactive.AutoDetachObserver`1.OnNextCore(IObservedChange`2 value)
   at System.Reactive.ObserverBase`1.OnNext(IObservedChange`2 value)
   at System.Reactive.SafeObserver`1.OnNext(IObservedChange`2 value)
   at System.Reactive.Linq.Observable.Select`2._.OnNext(Object value)
   at System.Reactive.Subjects.Subject`1.OnNext(Object value)
   at ReactiveUI.Xaml.DependencyObjectObservableForProperty.<>c__DisplayClass7.<GetNotificationForProperty>b__3(DependencyObject o, DependencyPropertyChangedEventArgs e)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.RefreshExpression(DependencyProperty dp)
   at System.Windows.Data.BindingExpression.RefreshExpression()
   at System.Windows.Data.BindingExpression.SendDataToTarget()
   at System.Windows.Data.BindingExpression.SourcePropertyChanged(PropertyPathListener sender, PropertyPathChangedEventArgs args)
   at System.Windows.PropertyPathListener.RaisePropertyPathStepChanged(PropertyPathStep source)
   at System.Windows.PropertyAccessPathStep.RaisePropertyPathStepChanged(PropertyListener source)
   at System.Windows.DependencyPropertyListener.SourcePropertyChanged(DependencyObject sender, DependencyProperty dp)
   at System.Windows.Data.WeakDependencyPropertyChangedListener.SourcePropertyChanged(DependencyObject sender, DependencyProperty dp)
   at System.Windows.DependencyObject.OnPropertyChanged(DependencyProperty dp)
   at System.Windows.FrameworkElement.OnPropertyChanged(DependencyProperty dp)
   at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
   at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet)
   at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value)
   at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
   at ReactiveUI.Routing.RoutedViewHost.set_Router(IRoutingState value)
   at Sample.MainPage..ctor()
   at System.Reflection.RuntimeConstructorInfo.InternalInvoke(RuntimeConstructorInfo rtci, BindingFlags invokeAttr, Binder binder, Object parameters, CultureInfo culture, Boolean isBinderDefault, Assembly caller, Boolean verifyAccess, StackCrawlMark& stackMark)
   at System.Reflection.RuntimeConstructorInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, StackCrawlMark& stackMark)
   at System.Activator.InternalCreateInstance(Type type, Boolean nonPublic, StackCrawlMark& stackMark)
   at System.Activator.CreateInstance(Type type)
   at System.Windows.Navigation.PageResourceContentLoader.BeginLoad_OnUIThread(AsyncCallback userCallback, PageResourceContentLoaderAsyncResult result)
   at System.Windows.Navigation.PageResourceContentLoader.<>c__DisplayClass4.<BeginLoad>b__0(Object args)
   at System.Reflection.RuntimeMethodInfo.InternalInvoke(RuntimeMethodInfo rtmi, Object obj, BindingFlags invokeAttr, Binder binder, Object parameters, CultureInfo culture, Boolean isBinderDefault, Assembly caller, Boolean verifyAccess, StackCrawlMark& stackMark)
   at System.Reflection.RuntimeMethodInfo.InternalInvoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, StackCrawlMark& stackMark)
   at System.Reflection.MethodBase.Invoke(Object obj, Object[] parameters)
   at System.Delegate.DynamicInvokeOne(Object[] args)
   at System.MulticastDelegate.DynamicInvokeImpl(Object[] args)
   at System.Delegate.DynamicInvoke(Object[] args)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.Dispatch(DispatcherPriority priority)
   at System.Windows.Threading.Dispatcher.OnInvoke(Object context)
   at System.Windows.Hosting.CallbackCookie.Invoke(Object[] args)
   at System.Windows.Hosting.DelegateWrapper.InternalInvoke(Object[] args)
   at System.Windows.RuntimeHost.ManagedHost.InvokeDelegate(IntPtr pHandle, Int32 nParamCount, ScriptParam[] pParams, ScriptParam& pResult)

Thanks!

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