c# – 在NullReference异常之后接收访问冲突异常(0xc0000005)是

我试图解决的一个大问题是确定为什么在我们的托管应用程序中,我们不时会收到访问冲突异常(0xc0000005).
最近,在一个完全不同的应用程序中,我们开始收到一个NullReference异常(现在知道这个bug),但后面跟着一个(0xc0000005)错误.我想知道这是正常行为还是与我们的“大问题”有关.

访问冲突异常(第2个)

Faulting application name: Marketform.Ultimates.Client.exe,version: 0.27.0.0,time stamp: 0x52728ad4
Faulting module name: unknown,version: 0.0.0.0,time stamp: 0x00000000
Exception code: 0xc0000005
Fault offset: 0x08cac78a
Faulting process id: 0x10f4
Faulting application start time: 0x01ced7016881cca1
Faulting application path: C:UsersvxkAppDataLocalApps2.0WZ2LJT6T.PKKWEJ4X8PL.17Emark..tion_5585060aa30c4020_0000.001e_06d3070c7f40068cMarketform.Ultimates.Client.exe
Faulting module path: unknown
Report Id: b7d08351-42f4-11e3-802a-005056b87be9

NullReference异常(第1个)

Application: Marketform.Ultimates.Client.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
Stack:
   at Marketform.Ultimates.Module.ViewModels.UltimatePremiumViewModel.CanSave()
   at Microsoft.Practices.Prism.Commands.DelegateCommand+<>c__DisplayClass6.<.ctor>b__3(System.Object)
   at Microsoft.Practices.Prism.Commands.DelegateCommandBase.CanExecute(System.Object)
   at Microsoft.Practices.Prism.Commands.DelegateCommandBase.System.Windows.Input.ICommand.CanExecute(System.Object)
   at Marketform.Ultimates.Module.DelegateCommandWrapper.CanExecute(System.Object)
   at MS.Internal.Commands.CommandHelpers.CanExecuteCommandSource(System.Windows.Input.ICommandSource)
   at System.Windows.Controls.Primitives.ButtonBase.UpdateCanExecute()
   at System.Windows.Controls.Primitives.ButtonBase.HookCommand(System.Windows.Input.ICommand)
   at System.Windows.Controls.Primitives.ButtonBase.OnCommandChanged(System.Windows.DependencyObject,System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.NotifyPropertyChange(System.Windows.DependencyPropertyChangedEventArgs)
   at System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.EntryIndex,System.Windows.DependencyProperty,System.Windows.PropertyMetadata,System.Windows.EffectiveValueEntry,System.Windows.EffectiveValueEntry ByRef,Boolean,System.Windows.OperationType)
   at System.Windows.DependencyObject.InvalidateProperty(System.Windows.DependencyProperty)
   at System.Windows.Data.BindingExpressionBase.Invalidate(Boolean)
   at System.Windows.Data.BindingExpression.TransferValue(System.Object,Boolean)
   at System.Windows.Data.BindingExpression.Activate(System.Object)
   at System.Windows.Data.BindingExpression.AttachToContext(AttachAttempt)
   at System.Windows.Data.BindingExpression.MS.Internal.Data.IDataBindEngineClient.AttachToContext(Boolean)
   at MS.Internal.Data.DataBindEngine+Task.Run(Boolean)
   at MS.Internal.Data.DataBindEngine.Run(System.Object)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate,System.Object,Int32)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object,System.Delegate,Int32,System.Delegate)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(System.Object)
   at System.Threading.ExecutionContext.runTryCode(System.Object)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode,CleanupCode,System.Object)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext,System.Threading.ContextCallback,System.Object)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext,Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext,System.Object)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr,IntPtr,Boolean ByRef)
   at MS.Win32.HwndWrapper.WndProc(IntPtr,Boolean ByRef)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(System.Object)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(System.Delegate,System.Delegate)
   at System.Windows.Threading.Dispatcher.InvokeImpl(System.Windows.Threading.DispatcherPriority,System.TimeSpan,Int32)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr,IntPtr)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(System.Windows.Interop.MSG ByRef)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(System.Windows.Threading.DispatcherFrame)
   at System.Windows.Threading.Dispatcher.PushFrame(System.Windows.Threading.DispatcherFrame)
   at System.Windows.Application.RunDispatcher(System.Object)
   at System.Windows.Application.RunInternal(System.Windows.Window)
   at System.Windows.Application.Run(System.Windows.Window)
   at Marketform.Ultimates.Client.App.Main()