AvaloniaLSP looks for assemblies in obj/Debug, but it should be looking in obj/Debug/$(TFM)/

[BinToss]

Describe the bug

AvaloniaVSCode/src/AvaloniaLSP/AvaloniaLanguageServer/Models/Workspace.cs

Lines 49 to 52 in c0bb008

	intermediateOutputPath = exeProj?.IntermediateOutputPath ?? "";
	return _metadataReader.GetForTargetAssembly(new AvaloniaCompilationAssemblyProvider(intermediateOutputPath));
	}

https://github.com/AvaloniaUI/AvaloniaVS/blob/4190a20de1cfa27324d82c1258ad6d03540ec98f/CompletionEngine/Avalonia.Ide.CompletionEngine/AssemblyMetadata/AvaloniaCompilationAssemblyProvider.cs#L11-L33

For a multi-targeting project, dotnet publish requires the --framework $TFM argument. However, dotnet build will build the project for each target framework specified via the TargetFrameworks project property.
Regardless, single-target projects will output intermediate files to per-framework sub-folders.

To Reproduce

Start debugging the extension, create a new Avalonia App in the extension development host, open an axaml file, check logs.

If this doesn't reproduce the issue, I will have time to rectify it on Saturday.

Avalonia for VS Code

v0.0.25

Avalonia version

v11.0.4

VS Code version

v1.85.1

Relevant log output

2023-12-27 06:57:25.297 [info] [Error - 6:57:25 AM] OmniSharp.Extensions.JsonRpc.DefaultRequestInvoker: Failed to handle request textDocument/didOpen - System.Exception: Failed to initialize workspace: file:///c:/Repos/BinToss/GroupBox.Avalonia/GroupBox.Avalonia.Sample/App.axaml
 ---> System.Exception: Failed to build completion metadata: c:\Repos\BinToss\GroupBox.Avalonia\GroupBox.Avalonia.Sample\obj\Debug\Avalonia\references
 ---> System.InvalidOperationException: Sequence contains no elements
   at System.Linq.ThrowHelper.ThrowNoElementsException()
   at System.Linq.Enumerable.First[TSource](IEnumerable\`1 source)
   at Avalonia.Ide.CompletionEngine.MetadataConverter.ConvertMetadata(IMetadataReaderSession provider) in C:\Repos\AvaloniaVSCode\src\AvaloniaVS\CompletionEngine\Avalonia.Ide.CompletionEngine\AssemblyMetadata\MetadataConverter.cs:line 109
   at Avalonia.Ide.CompletionEngine.AssemblyMetadata.MetadataReader.GetForTargetAssembly(IAssemblyProvider assemblyProvider) in C:\Repos\AvaloniaVSCode\src\AvaloniaVS\CompletionEngine\Avalonia.Ide.CompletionEngine\AssemblyMetadata\MetadataReader.cs:line 15
   at AvaloniaLanguageServer.Models.Workspace.BuildCompletionMetadata(DocumentUri uri) in C:\Repos\AvaloniaVSCode\src\AvaloniaLSP\AvaloniaLanguageServer\Models\Workspace.cs:line 51
   --- End of inner exception stack trace ---
   at AvaloniaLanguageServer.Models.Workspace.BuildCompletionMetadata(DocumentUri uri) in C:\Repos\AvaloniaVSCode\src\AvaloniaLSP\AvaloniaLanguageServer\Models\Workspace.cs:line 55
   at AvaloniaLanguageServer.Models.Workspace.InitializeAsync(DocumentUri uri) in C:\Repos\AvaloniaVSCode\src\AvaloniaLSP\AvaloniaLanguageServer\Models\Workspace.cs:line 22
   --- End of inner exception stack trace ---
   at AvaloniaLanguageServer.Models.Workspace.InitializeAsync(DocumentUri uri) in C:\Repos\AvaloniaVSCode\src\AvaloniaLSP\AvaloniaLanguageServer\Models\Workspace.cs:line 26
   at AvaloniaLanguageServer.Handlers.TextDocumentSyncHandler.Handle(DidOpenTextDocumentParams request, CancellationToken cancellationToken) in C:\Repos\AvaloniaVSCode\src\AvaloniaLSP\AvaloniaLanguageServer\Handlers\TextDocumentSyncHandler.cs:line 27
   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.SemanticTokensDeltaPipeline`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.ResolveCommandPipeline`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestPreProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestPostProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionActionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at MediatR.Pipeline.RequestExceptionActionProcessorBehavior`2.Handle(TRequest request, CancellationToken cancellationToken, RequestHandlerDelegate`1 next)
   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.<RouteNotification>g__InnerRoute|6_0(IServiceScopeFactory serviceScopeFactory, TDescriptor descriptor, Object params, CancellationToken token)
   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.RouteNotification(IRequestDescriptor`1 descriptors, Notification notification, CancellationToken token)
   at OmniSharp.Extensions.JsonRpc.DefaultRequestInvoker.<>c__DisplayClass11_0.<<RouteNotification>b__3>d.MoveNext() | Method='textDocument/didOpen'

Additional context

I found this while debugging createPreviewerAssets.ts and its dependency files.

[BinToss]

This may be related to #99