Drag and Drop S# Designer error

I cant drap and drop any tools from Palette this is the error log when I try to do this :


Name Time Type Message
DesignerConnector 1/1/0001 12:00:00 AM Info New portfolio Simulator created.
DesignerConnector 1/1/0001 12:00:00 AM Info New portfolio 0 created.
DesignerConnector 1/1/0001 12:00:00 AM Info New portfolio Binance_1516679370 created.
S#.Designer 3/24/2018 9:01:04 PM Error "System.Windows.Markup.XamlParseException: Provide value on 'System.Windows.Baml2006.TypeConverterMarkupExtension' threw an exception. ---> System.InvalidOperationException: Property path is not valid. 'dje_qJ43ZG62TTY4EEHLZ3AX77CFZJR88XRGJ58ZNKM22WYJZNWLEKREKHJ2VVYAQ8SDG4KL89TXYX5GUF_ejd' does not have a public property named 'AllowDrop'.
at System.Windows.PropertyPath.ResolvePropertyName(String name, Object item, Type ownerType, Object context, Boolean throwOnError)
at System.Windows.PropertyPath.ResolvePathParts(ITypeDescriptorContext typeDescriptorContext)
at System.Windows.PropertyPath..ctor(String path, ITypeDescriptorContext typeDescriptorContext)
at System.Windows.PropertyPathConverter.ConvertFrom(ITypeDescriptorContext typeDescriptorContext, CultureInfo cultureInfo, Object source)
at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CallProvideValue(MarkupExtension me, IServiceProvider serviceProvider)
--- End of inner exception stack trace ---
at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri)
at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter)
at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlObjectWriter objectWriter)
at System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(DependencyObject container, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
at System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren)
at System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate)
at System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container)
at System.Windows.FrameworkElement.ApplyTemplate()
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at DevExpress.Xpf.Core.FloatingContainer.GetLayoutAutoSize()
at DevExpress.Xpf.Core.FloatingWindowContainer.EnsureAutoSize(Size size)
at DevExpress.Xpf.Core.FloatingWindowContainer.UpdateFloatingBoundsCore(Rect bounds)
at DevExpress.Xpf.Core.FloatingContainer.OnFloatingBoundsChanged(Rect bounds)
at DevExpress.Xpf.Core.BaseFloatingContainer.OnFloatingBoundsChanged(DependencyObject dObj, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
at DevExpress.Xpf.Core.Native.FloatingContainerDragElement.UpdateLocation(Point newPos)
at DevExpress.Xpf.Core.Native.DragDropElementHelper.UpdateDragElementLocation(Point newPos)
at DevExpress.Xpf.Core.Native.DragDropElementHelper.OnMouseMoveIndependentCore(Object sender, IndependentMouseEventArgs e, Boolean isLeave)
at DevExpress.Xpf.Core.Native.DragDropElementHelper.OnPreviewMouseMove(Object sender, MouseEventArgs e)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
at System.Windows.Input.InputManager.ProcessStagingArea()
at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)"