[Problem/Bug]: WebView2CompositionControl). #5163

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1. Davide mercanti (merco)

   added

   bugSomething isn't workingSomething isn't working

   on Mar 13, 2025
2. SoulsideJourney commented on Mar 14, 2025

   

   SoulsideJourney

   on Mar 14, 2025

   Last edited by SoulsideJourney

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   Exactly the same problem. Stacktrace:

      at Microsoft.Web.WebView2.Wpf.WebView2CompositionControl.WebView2CompositionControl_Loaded(Object sender, RoutedEventArgs e)
      at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
      at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
      at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
      at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
      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.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)
   

   Old HWND WebView2 works fine.
3. SoulsideJourney commented on Mar 14, 2025

   

   SoulsideJourney

   on Mar 14, 2025

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   Setting SupportedOSPlatformVersion to 10.0.17763.0 in the project file solved the problem
4. CarnationRED commented on Mar 29, 2025

   

   CarnationRED

   on Mar 29, 2025

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   You can also find nuget package microsoft.windows.sdk.net.ref and copy both WinRT.Runtime.dll and Microsoft.Windows.SDK.NET.dll to your build folder.
5. sivMSFT commented on Mar 31, 2025

   

   Siv Souvam (MSFT) (sivMSFT)

   on Mar 31, 2025

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   Hi Davide mercanti (@merco) and SoulsideJourney, are you still experiencing the same issue, or has it been resolved?
6. merco commented on Mar 31, 2025

   

   Davide mercanti (merco)

   on Mar 31, 2025

   Author

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   Siv Souvam (MSFT) (@sivMSFT) I did as
   SoulsideJourney suggested, but is it the correct procedure or a workaound?
7. SoulsideJourney commented on Mar 31, 2025

   

   SoulsideJourney

   on Mar 31, 2025

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   Davide mercanti (@merco) Acccording to learn.microsoft.com, WebView2 doesn't support Windows 7 after version 109. So I guess SupportedOSPlatformVersion = 10.0.17763.0 as a minimum version is a requiered setting.
8. nhoefer2 commented on Apr 9, 2025

   

   nhoefer2

   on Apr 9, 2025

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   I had the same problem and was able to resolve it when putting this in the csproj file
   <TargetFramework>net8.0-windows10.0.19041.0</TargetFramework>

   "net8.0-windows" by itself is not sufficient
9. Siv Souvam (MSFT) (sivMSFT)

   assigned

   Navdeep Singh (Navdeep-ss)

   on Apr 10, 2025
10. bdovaz commented on Apr 11, 2025

    

    Borja Domínguez (bdovaz)

    on Apr 11, 2025

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    I have the same problem, and in the release notes there is no mention of it.

    I don't know if this dependency has been introduced that now requires a minimum version of Windows 10.0.17763.24 when previously there was none and used the one from TFM (7.0 in the case of .NET9).

    In this case there is no official documentation that this control has this dependency and how to fix it. In this page there is not a single reference to any of this and promises that it is simply switching from one control to another and everything works the same because they share the IWebView2 interface.

    Or if on the contrary it is a bug and that dependency is not expected.

    cc Siv Souvam (MSFT) (@sivMSFT)
11. mtinnes commented on Apr 14, 2025

    

    Mike Tinnes (mtinnes)

    on Apr 14, 2025

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    Same. In my case I had to use the following: <TargetFramework>net8.0-windows10.0.17763.0</TargetFramework>

    Using WebView2 nuget version: 1.0.3179.45

    👍React with 👍2Reacted by adamcalvet and Mingbo Peng
12. mtinnes commented on Apr 22, 2025

    

    Mike Tinnes (mtinnes)

    on Apr 22, 2025

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    Also, I'm not getting NavigationCompleted events anymore. Wonder if this has anything todo with the forced TargetFramework.