SampleCandles 4.1 ошибка NullReferenceException

   в AmCharts.Windows.Stock.Data.DataSet.ProcessDataBoundItems()
   в AmCharts.Windows.Stock.Data.DataSet.ProcessItems()
   в AmCharts.Windows.Stock.Data.DataSet.get_AggregateData()
   в AmCharts.Windows.Stock.Graph.get_ActiveDataSet()
   в AmCharts.Windows.Stock.Graph.SetVisibleDataItems()
   в AmCharts.Windows.Stock.Graph.get_VisibleDataItems()
   в AmCharts.Windows.Stock.Graph.GetMinimumValue(DateTime fromDate, DateTime toDate)
   в AmCharts.Windows.Stock.Primitives.ValueAxis.SetLinearMinMax(DateTime fromDate, DateTime toDate, Int32 grid_count)
   в AmCharts.Windows.Stock.Primitives.ValueAxis.SetMinMax(DateTime fromDate, DateTime toDate, Int32 grid_count)
   в AmCharts.Windows.Stock.Chart.RecalculateValueAxes()
   в AmCharts.Windows.Stock.Chart.AdjustParts()
   в AmCharts.Windows.Stock.Chart.MeasureOverride(Size constraint)
   в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   в System.Windows.UIElement.Measure(Size availableSize)
   в System.Windows.ContextLayoutManager.UpdateLayout()
   в System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   в System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
   в System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   в System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   в System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
   в System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   в MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   в System.Windows.Threading.DispatcherOperation.InvokeImpl()
   в System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
   в System.Threading.ExecutionContext.runTryCode(Object userData)
   в System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   в System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   в System.Windows.Threading.DispatcherOperation.Invoke()
   в System.Windows.Threading.Dispatcher.ProcessQueue()
   в System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   в MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   в MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   в System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   в MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   в System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   в MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   в MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   в System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   в System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   в System.Windows.Threading.Dispatcher.Run()
   в System.Windows.Application.RunDispatcher(Object ignore)
   в System.Windows.Application.RunInternal(Window window)
   в System.Windows.Application.Run(Window window)
   в System.Windows.Application.Run()
   в SampleCandles.App.Main() в d:\StockSharp 4.1\Project\SampleCandles\obj\Debug\App.g.cs:строка 0
   в System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
   в System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
   в Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
   в System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   в System.Threading.ThreadHelper.ThreadStart()