# Dynamo don't load on Revit 2021

**URL:** <https://forum.dynamobim.com/t/dynamo-dont-load-on-revit-2021/86245>\
**Category:** Revit\
**Created:** [February 16, 2023, 1:56pm UTC](https://forum.dynamobim.com/t/dynamo-dont-load-on-revit-2021/86245 "2023-02-16T13:56:37Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![NASTARAN.KHATIBLT4ZF](https://avatars.discourse-cdn.com/v4/letter/n/f0a364/32.png) [@NASTARAN.KHATIBLT4ZF](https://forum.dynamobim.com/u/NASTARAN.KHATIBLT4ZF)\
**Post date:** [February 16, 2023, 1:56pm UTC](https://forum.dynamobim.com/t/dynamo-dont-load-on-revit-2021/86245/1 "2023-02-16T13:56:37Z")

</div>

Hi all,

I am trying to load Dynamo for the first time on my laptop but I didn’t have any lock.

Every time I click on Dynamo the following window came and said Dynamo has Crashed.

 ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/b/8/b8a88414b636b3d6ad8f8aa320393a097d9b764b.png)

Here is the details:

HRESULT: [0x8876086A], Module: [SharpDX.Direct3D9], ApiCode: [D3DERR\_NOTAVAILABLE/NotAvailable], Message: Unknown

at SharpDX.Result.CheckError()  
at SharpDX.Direct3D9.Direct3DEx.CreateDeviceEx(Int32 adapter, DeviceType deviceType, IntPtr hFocusWindow, Int32 behaviorFlags, PresentParameters presentationParametersRef, DisplayModeEx fullscreenDisplayModeRef, DeviceEx returnedDeviceInterfaceOut)  
at HelixToolkit.Wpf.SharpDX.DX11ImageSource.StartD3D()  
at HelixToolkit.Wpf.SharpDX.DX11ImageSource…ctor()  
at HelixToolkit.Wpf.SharpDX.DPFCanvas.StartD3D()  
at HelixToolkit.Wpf.SharpDX.DPFCanvas.RenderTechniquesManagerPropertyChanged()  
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 HelixToolkit.Wpf.SharpDX.Viewport3DX.RenderTechniquesManagerPropertyChanged()  
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.InvalidateProperty(DependencyProperty dp, Boolean preserveCurrentValue)  
at System.Windows.Data.BindingExpressionBase.Invalidate(Boolean isASubPropertyChange)  
at System.Windows.Data.BindingExpression.TransferValue(Object newValue, Boolean isASubPropertyChange)  
at System.Windows.Data.BindingExpression.Activate(Object item)  
at System.Windows.Data.BindingExpression.AttachToContext(AttachAttempt attempt)  
at System.Windows.Data.BindingExpression.MS.Internal.Data.IDataBindEngineClient.AttachToContext(Boolean lastChance)  
at MS.Internal.Data.DataBindEngine.Task.Run(Boolean lastChance)  
at MS.Internal.Data.DataBindEngine.Run(Object arg)  
at System.Windows.ContextLayoutManager.fireLayoutUpdateEvent()  
at System.Windows.ContextLayoutManager.UpdateLayout()  
at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)  
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()  
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)  
at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)  
at System.Windows.Interop.HwndTarget.OnResize()  
at System.Windows.Interop.HwndTarget.HandleMessage(WindowMessage msg, IntPtr wparam, IntPtr lparam)  
at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(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)

I also cut the analytics folder and paste it in another folder, however, it didn’t work.

Thanks all for your help.