Rider use prism to simple view not preview but can compile and run success

[shuangqingqiang]

Describe the bug

XamlTypeSystemException: Unable to resolve type Weight.Views.MainWindow
XamlX.XamlTypeSystemException: Unable to resolve type Weight.Views.MainWindow
   at XamlX.TypeSystem.XamlTypeSystemExtensions.GetType(IXamlTypeSystem sys, String type)
   at Avalonia.Markup.Xaml.XamlIl.CompilerExtensions.AvaloniaXamlIlCompiler.Parse(String xaml, IXamlType overrideRootType)
   at Avalonia.Markup.Xaml.XamlIl.AvaloniaXamlIlRuntimeCompiler.LoadGroupSreCore(IReadOnlyCollection`1 documents, RuntimeXamlLoaderConfiguration configuration)
   at Avalonia.Markup.Xaml.XamlIl.AvaloniaXamlIlRuntimeCompiler.LoadSreCore(RuntimeXamlLoaderDocument document, RuntimeXamlLoaderConfiguration configuration)
   at Avalonia.Markup.Xaml.XamlIl.AvaloniaXamlIlRuntimeCompiler.LoadSre(RuntimeXamlLoaderDocument document, RuntimeXamlLoaderConfiguration configuration)
   at Avalonia.Markup.Xaml.XamlIl.AvaloniaXamlIlRuntimeCompiler.Load(RuntimeXamlLoaderDocument document, RuntimeXamlLoaderConfiguration configuration)
   at Avalonia.Designer.HostApp.DesignXamlLoader.Load(RuntimeXamlLoaderDocument document, RuntimeXamlLoaderConfiguration configuration)
   at Avalonia.DesignerSupport.DesignWindowLoader.LoadDesignerWindow(String xaml, String assemblyPath, String xamlFileProjectPath, Double renderScaling)
   at Avalonia.DesignerSupport.Remote.RemoteDesignerEntryPoint.<>c. b__17_0(Object arg)

<Design.DataContext>
    <!-- This only sets the DataContext for the previewer in an IDE,
         to set the actual DataContext for runtime, set the DataContext property in code (look at App.axaml.cs) -->
    <vm:MainWindowViewModel/>
</Design.DataContext>

<TextBlock Text="{Binding Greeting}" HorizontalAlignment="Center" VerticalAlignment="Center"/>

using Avalonia.Controls;

namespace Weight.Views;

public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
}

<Application.DataTemplates>
    <local:ViewLocator/>
</Application.DataTemplates>

<Application.Styles>
    <FluentTheme />
</Application.Styles>

using Avalonia;
using Avalonia.Controls.ApplicationLifetimes;
using Avalonia.Data.Core;
using Avalonia.Data.Core.Plugins;
using System.Linq;
using Avalonia.Markup.Xaml;
using Weight.ViewModels;
using Weight.Views;

namespace Weight;

public partial class App : Application
{
public override void Initialize()
{
AvaloniaXamlLoader.Load(this);
}

public override void OnFrameworkInitializationCompleted()
{
    if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
    {
        // Avoid duplicate validations from both Avalonia and the CommunityToolkit. 
        // More info: https://docs.avaloniaui.net/docs/guides/development-guides/data-validation#manage-validationplugins
        DisableAvaloniaDataAnnotationValidation();
        desktop.MainWindow = new MainWindow
        {
            DataContext = new MainWindowViewModel(),
        };
    }

    base.OnFrameworkInitializationCompleted();
}

private void DisableAvaloniaDataAnnotationValidation()
{
    // Get an array of plugins to remove
    var dataValidationPluginsToRemove =
        BindingPlugins.DataValidators.OfType<DataAnnotationsValidationPlugin>().ToArray();

    // remove each entry found
    foreach (var plugin in dataValidationPluginsToRemove)
    {
        BindingPlugins.DataValidators.Remove(plugin);
    }
}

}

WinExe
net8.0-windows
enable
app.manifest
true

<ItemGroup>
    <AvaloniaResource Include="Assets\**"/>
</ItemGroup>

   
       
       
       
       
       
       
       
            None
            All
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
       
   

   
     
        DLL\LPRLibs.dll
     
     
        DLL\Microsoft.ML.OnnxRuntime.dll
     
   

To Reproduce

but it work when i create simple view not work when edit some code

Expected behavior

No response

Avalonia version

11.3.10

OS

Windows

Additional context

No response

[shuangqingqiang]

i use binary search function found some code like [DllImport(@".\bin\HCNetSDK.dll")]
public static extern int NET_DVR_GetNextRemoteConfig(int lHandle, ref CHCNetSDK.NET_DVR_CAPTURE_FACE_CFG lpOutBuff, int dwOutBuffSize); import dll from local dll file then i can not work but it is some code from hik company i want to know how to avod this problem i can use preview funtion

[timunie]

You can use if(Deisng.IsDesignMode) to skip some logic in the ViewModel that the previewer doesn't like.

Other than that, it is hard to help without seeing an actual minimal sample.