vscode-insiders error after updating to Uno.Sdk 6.5.31

[mcNets]

After updating Uno.Sdk to 6.5.31 I'm not able to use vscode-insiders with an existing project. (I can using VS)

VSCode

Version: 1.110.0-insider (user setup)
Commit: 5cc2b2a6f7d3861858ccb41e593582124a659d94
Date: 2026-02-12T05:05:38.334Z
Electron: 39.3.0
ElectronBuildId: 13168319
Chromium: 142.0.7444.265
Node.js: 22.21.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

Outputs

Uno platform

[Info] [uno.solution] 0 (Loading...)
[Info] [uno.check] 1 (Pending)
[Info] [uno.dev_server] 1 (Pending)
[Info] Launching XAML language server c:\Users\mcnets\.vscode-insiders\extensions\unoplatform.vscode-0.24.1\bin\lshost\net10.0\Uno.LSP.Host.dll
[Info] Telemetry host connected.
[Info] XAML language server c:\Users\mcnets\.vscode-insiders\extensions\unoplatform.vscode-0.24.1\bin\lshost\net10.0\Uno.LSP.Host.dll successfully started
[Info] Found 'ms-dotnettools.csharp' version 2.121.32.
[Info] Found 'ms-dotnettools.csdevkit' version 2.10.3.
[Info] C# extension onServerStateChange API is available.
[Info] Running in Dev Kit mode
[Info] Uno Platform "dotnet new" templates are already installed. The templates may be updated by running "dotnet new install Uno.Templates"
[Info] [uno.solution] 0 (NuGet restore...)
[Info] Setting active project C:\Code\McTimeline\src\McTimelineDemo\McTimelineDemo\McTimelineDemo.csproj
[Info] [uno.dev_server] 0 (Starting...)
[Info] [uno.solution] 2 (Loaded)
[Info] Parsed the Uno.Sdk version from the manifest. The latest version is 6.4.53.
[Info] User is targeting 6.5.31 Uno.Sdk.
[Error] [uno.solution] 4 (Entry point failed)
Error: Command failed: dotnet build /t:GetRemoteControlHostPath "C:\Code\McTimeline\src\McTimelineDemo\McTimelineDemo\McTimelineDemo.csproj" -f net10.0-desktop
  Determinando los proyectos que se van a restaurar...
C:\Program Files\dotnet\sdk\9.0.311\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.TargetFrameworkInference.targets(166,5): error NETSDK1045: El SDK de .NET actual no admite el destino .NET 10.0. Use el destino .NET 9.0 u otro inferior, o bien una versión del SDK de .NET que admita .NET 10.0. Descargue el SDK de .NET de https://aka.ms/dotnet/download. [C:\Code\McTimeline\src\McTimeline\McTimeline.csproj::TargetFramework=net10.0]
C:\Program Files\dotnet\sdk\9.0.311\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.TargetFrameworkInference.targets(166,5): error NETSDK1045: El SDK de .NET actual no admite el destino .NET 10.0. Use el destino .NET 9.0 u otro inferior, o bien una versión del SDK de .NET que admita .NET 10.0. Descargue el SDK de .NET de https://aka.ms/dotnet/download. [C:\Code\McTimeline\src\McTimelineDemo\McTimelineDemo\McTimelineDemo.csproj::TargetFramework=net10.0-desktop]

	at genericNodeError (node:internal/errors:983:15)
	at wrappedFn (node:internal/errors:537:14)
	at ChildProcess.exithandler (node:child_process:418:12)
	at ChildProcess.emit (node:events:519:28)
	at maybeClose (node:internal/child_process:1101:16)
	at ChildProcess._handle.onexit (node:internal/child_process:304:5)
[Error] [uno.dev_server] 4 (Not running)
[Info] Parsed the Uno.Sdk version from the manifest. The latest version is 6.4.53.
[Info] Verifying Uno.Check installation.
[Info] Uno.Check is installed.
[Info] Starting Uno.Check with "--tfm net10.0-desktop --tfm net10.0-android --tfm net10.0-ios --tfm net10.0-windows10.0.26100 --tfm net10.0-browserwasm"
[Info] [uno.check] 0 (Running...)
[Info] Uno.Check output successfully written to: C:\Users\mcnets\AppData\Local\Temp\uno-check-9a4b114c-e7d1-4a3f-b69b-ae99b5678d1c.txt
[Info] [uno.check] 2 (Success)
[Info] Uno.Check hasn't detected any errors.

Uno Platform Debugg

[Info] Starting Debug adapter
[Error]: Failed 'dotnet restore' with error: Error: Command failed: dotnet restore C:\Code\McTimeline\src\McTimelineDemo\McTimelineDemo\McTimelineDemo.csproj

[Error]: An error occurred: Error: Command failed: dotnet restore C:\Code\McTimeline\src\McTimelineDemo\McTimelineDemo\McTimelineDemo.csproj

Uno Platform Hot Reload

[Error] Command failed: dotnet build /t:GetRemoteControlHostPath "C:\Code\McTimeline\src\McTimelineDemo\McTimelineDemo\McTimelineDemo.csproj" -f net10.0-desktop
  Determinando los proyectos que se van a restaurar...
C:\Program Files\dotnet\sdk\9.0.311\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.TargetFrameworkInference.targets(166,5): error NETSDK1045: El SDK de .NET actual no admite el destino .NET 10.0. Use el destino .NET 9.0 u otro inferior, o bien una versión del SDK de .NET que admita .NET 10.0. Descargue el SDK de .NET de https://aka.ms/dotnet/download. [C:\Code\McTimeline\src\McTimeline\McTimeline.csproj::TargetFramework=net10.0]
C:\Program Files\dotnet\sdk\9.0.311\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.TargetFrameworkInference.targets(166,5): error NETSDK1045: El SDK de .NET actual no admite el destino .NET 10.0. Use el destino .NET 9.0 u otro inferior, o bien una versión del SDK de .NET que admita .NET 10.0. Descargue el SDK de .NET de https://aka.ms/dotnet/download. [C:\Code\McTimeline\src\McTimelineDemo\McTimelineDemo\McTimelineDemo.csproj::TargetFramework=net10.0-desktop]

Uno platform XAML

info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: c:\Code\McTimeline
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: c:\Code\McTimeline
warn: Uno.LSP.Roslyn.RoslynServerTarget[0]
      Failed to find ProjectStringCache
fail: Uno.LSP.Roslyn.RoslynServerTarget[0]
      RoslynServerTarget.Failed: System.ArgumentNullException: Value cannot be null. (Parameter 'key')
         at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value, InsertionBehavior behavior)
         at System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value)
         at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
         at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector)
         at Uno.LSP.Roslyn.RoslynServerTarget.BuildKnownNamespaces(Compilation compilation) in /home/vsts/work/1/s/src/server/Uno.LSP.Roslyn/RoslynServerTarget.Compilation.cs:line 44
         at Uno.LSP.Roslyn.RoslynServerTarget.CompileAsync(String projectPath, String configuration, String targetFramework, FileChangedEvent changedFile) in /home/vsts/work/1/s/src/server/Uno.LSP.Roslyn/RoslynServerTarget.Compilation.cs:line 101
         at Uno.LSP.Roslyn.RoslynServerTarget.StartCompilationLoopAsync(String projectPath, String configuration, String targetFramework) in /home/vsts/work/1/s/src/server/Uno.LSP.Roslyn/RoslynServerTarget.Compilation.cs:line 171
         at Uno.LSP.Roslyn.RoslynServerTarget.InitializeAsync(InitializeParams initializeParams) in /home/vsts/work/1/s/src/server/Uno.LSP.Roslyn/RoslynServerTarget.cs:line 52

Extensions host

2026-02-12 09:29:34.407 [info] ExtensionService#_doActivateExtension ms-dotnettools.vscode-dotnet-runtime, startup: true, activationEvent: 'workspaceContains:**/*.xaml,**/*.{csproj,sln,slnf,slnx,csx,cake}', root cause: unoplatform.vscode
2026-02-12 09:29:34.530 [info] ExtensionService#_doActivateExtension ms-dotnettools.csharp, startup: true, activationEvent: 'workspaceContains:**/*.xaml,**/*.{csproj,sln,slnf,slnx,csx,cake}', root cause: unoplatform.vscode
2026-02-12 09:29:34.658 [info] ExtensionService#_doActivateExtension ms-dotnettools.csdevkit, startup: true, activationEvent: 'workspaceContains:**/*.xaml,**/*.{csproj,sln,slnf,slnx,csx,cake}', root cause: unoplatform.vscode