Device Guard - Could not load file or assembly

Describe the bug

Set connectionId threw an exception.

Could not load file or assembly 'Wpf.Ui, Version=4.0.0.0, Culture=neutral, PublicKeyToken=11f9f5cc97b3ffd6' or one of its dependencies. Your organization used Device Guard to block this app. Contact your support person for more info. (Exception from HRESULT: 0x800711C7)

To Reproduce

Just open the application.

Expected behavior

Fixing exactly what Device Guard is blocking in this library.

Screenshots

OS version

Windows 11 - 10.0.22631.4169

.NET version

.NET Framework 4.8

WPF-UI NuGet version

4.0.0-rc.2

Additional context

Source of the error:

at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri)
at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)
at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)
at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)
at Sucrose.Update.View.MainWindow.InitializeComponent() in E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\View\\MainWindow.xaml:line 1
at Sucrose.Update.View.MainWindow..ctor(Boolean Silent) in E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\View\\MainWindow.xaml.cs:line 78
at Sucrose.Update.App.Configure(Boolean Silent) in E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\App.xaml.cs:line 101
at Sucrose.Update.App.OnStartup(StartupEventArgs e) in E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\App.xaml.cs:line 137
at System.Windows.Application.<.ctor>b__1_0(Object unused)
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)

at Sucrose.Update.View.MainWindow.System.Windows.Markup.IComponentConnector.Connect(Int32 connectionId, Object target)
at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetConnectionId(Object root, Int32 connectionId, Object instance)

The full error is:

{
    "HResult": -2146233087,
    "Source": "PresentationFramework",
    "HelpURL": null,
    "Message": "Set connectionId threw an exception.",
    "ClassName": "System.Windows.Markup.XamlParseException",
    "Data": {
      "System.Object": null
    },
    "FullMessage": "Set connectionId threw an exception. -> Could not load file or assembly 'Wpf.Ui, Version=4.0.0.0, Culture=neutral, PublicKeyToken=11f9f5cc97b3ffd6' or one of its dependencies. Your organization used Device Guard to block this app. Contact your support person for more info. (Exception from HRESULT: 0x800711C7)",
    "RawStackTrace": "   at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri)\r\n   at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri)\r\n   at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri)\r\n   at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream)\r\n   at Sucrose.Update.View.MainWindow.InitializeComponent() in E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\View\\MainWindow.xaml:line 1\r\n   at Sucrose.Update.View.MainWindow..ctor(Boolean Silent) in E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\View\\MainWindow.xaml.cs:line 78\r\n   at Sucrose.Update.App.Configure(Boolean Silent) in E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\App.xaml.cs:line 101\r\n   at Sucrose.Update.App.OnStartup(StartupEventArgs e) in E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\App.xaml.cs:line 137\r\n   at System.Windows.Application.<.ctor>b__1_0(Object unused)\r\n   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)\r\n   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)",
    "StackTrace": [
      {
        "Method": "Void RewrapException(System.Exception, System.Xaml.IXamlLineInfo, System.Uri)",
        "LineNumber": 0,
        "FileName": null,
        "ColumnNumber": 0
      },
      {
        "Method": "System.Object Load(System.Xaml.XamlReader, System.Xaml.IXamlObjectWriterFactory, Boolean, System.Object, System.Xaml.XamlObjectWriterSettings, System.Uri)",
        "LineNumber": 0,
        "FileName": null,
        "ColumnNumber": 0
      },
      {
        "Method": "System.Object LoadBaml(System.Xaml.XamlReader, Boolean, System.Object, System.Xaml.Permissions.XamlAccessLevel, System.Uri)",
        "LineNumber": 0,
        "FileName": null,
        "ColumnNumber": 0
      },
      {
        "Method": "System.Object LoadBaml(System.IO.Stream, System.Windows.Markup.ParserContext, System.Object, Boolean)",
        "LineNumber": 0,
        "FileName": null,
        "ColumnNumber": 0
      },
      {
        "Method": "Void InitializeComponent()",
        "LineNumber": 1,
        "FileName": "E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\View\\MainWindow.xaml",
        "ColumnNumber": 13
      },
      {
        "Method": "Void .ctor(Boolean)",
        "LineNumber": 78,
        "FileName": "E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\View\\MainWindow.xaml.cs",
        "ColumnNumber": 13
      },
      {
        "Method": "Void Configure(Boolean)",
        "LineNumber": 101,
        "FileName": "E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\App.xaml.cs",
        "ColumnNumber": 13
      },
      {
        "Method": "Void OnStartup(System.Windows.StartupEventArgs)",
        "LineNumber": 137,
        "FileName": "E:\\MyProject\\Sucrose\\Pro\\Sucrose\\src\\Update\\Sucrose.Update\\App.xaml.cs",
        "ColumnNumber": 17
      },
      {
        "Method": "System.Object <.ctor>b__1_0(System.Object)",
        "LineNumber": 0,
        "FileName": null,
        "ColumnNumber": 0
      },
      {
        "Method": "System.Object InternalRealCall(System.Delegate, System.Object, Int32)",
        "LineNumber": 0,
        "FileName": null,
        "ColumnNumber": 0
      },
      {
        "Method": "System.Object TryCatchWhen(System.Object, System.Delegate, System.Object, Int32, System.Delegate)",
        "LineNumber": 0,
        "FileName": null,
        "ColumnNumber": 0
      }
    ],
    "InnerException": {
      "HResult": -2147020345,
      "Source": "Sucrose.Update",
      "HelpURL": null,
      "Message": "Could not load file or assembly 'Wpf.Ui, Version=4.0.0.0, Culture=neutral, PublicKeyToken=11f9f5cc97b3ffd6' or one of its dependencies. Your organization used Device Guard to block this app. Contact your support person for more info. (Exception from HRESULT: 0x800711C7)",
      "ClassName": "System.IO.FileLoadException",
      "Data": {},
      "FullMessage": "Could not load file or assembly 'Wpf.Ui, Version=4.0.0.0, Culture=neutral, PublicKeyToken=11f9f5cc97b3ffd6' or one of its dependencies. Your organization used Device Guard to block this app. Contact your support person for more info. (Exception from HRESULT: 0x800711C7)",
      "RawStackTrace": "   at Sucrose.Update.View.MainWindow.System.Windows.Markup.IComponentConnector.Connect(Int32 connectionId, Object target)\r\n   at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetConnectionId(Object root, Int32 connectionId, Object instance)",
      "StackTrace": [
        {
          "Method": "Void System.Windows.Markup.IComponentConnector.Connect(Int32, System.Object)",
          "LineNumber": 0,
          "FileName": null,
          "ColumnNumber": 0
        },
        {
          "Method": "Void SetConnectionId(System.Object, Int32, System.Object)",
          "LineNumber": 0,
          "FileName": null,
          "ColumnNumber": 0
        }
      ],
      "InnerException": null
    }
  }

Link to the files mentioned in the error:

https://github.com/Taiizor/Sucrose/blob/develop/src/Update/Sucrose.Update/App.xaml.cs

https://github.com/Taiizor/Sucrose/blob/develop/src/Update/Sucrose.Update/View/MainWindow.xaml
https://github.com/Taiizor/Sucrose/blob/develop/src/Update/Sucrose.Update/View/MainWindow.xaml.cs

Start with the reported startup path in Sucrose.Update/App.xaml.cs, View/MainWindow.xaml, and View/MainWindow.xaml.cs, then inspect how the Wpf.Ui 4.0.0 assembly is loaded. Reproduce the failure on Windows 11 with .NET Framework 4.8 and Device Guard enabled. Done means identifying and resolving the library or packaging condition that Device Guard blocks when MainWindow initializes.