A pop-up notification said: please send this massage to developers

Describe the Issue

=====================
15.05.2026 11:17:07
LimitedFunctionality
System.AggregateException: One or more errors occurred. (İstek tamamlanamadan uzak tarafla JSON-RPC bağlantısı kesildi.)
---> (Inner Exception #0) StreamJsonRpc.ConnectionLostException: İstek tamamlanamadan uzak tarafla JSON-RPC bağlantısı kesildi.
   at StreamJsonRpc.JsonRpc.InvokeCoreAsync(JsonRpcRequest request, Type expectedResultType, CancellationToken cancellationToken)
   at StreamJsonRpc.JsonRpc.InvokeCoreAsync[TResult](RequestId id, String targetName, IReadOnlyList`1 arguments, IReadOnlyList`1 positionalArgumentDeclaredTypes, IReadOnlyDictionary`2 namedArgumentDeclaredTypes, CancellationToken cancellationToken, Boolean isParameterObject)
   at Microsoft.VisualStudio.Options.StaticOptions.<>c__DisplayClass0_0.<<-ctor>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.VisualStudio.Threading.AwaitExtensions.ExecuteContinuationSynchronouslyAwaiter`1.GetResult()
   at Microsoft.VisualStudio.Threading.AsyncLazy`1.<>c__DisplayClass20_0.<<GetValueAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.VisualStudio.Options.StaticOptions.IsLanguageServiceCacheEnabledAsync()
   at Microsoft.VisualStudio.ProjectSystem.VSCode.LanguageServices.CachingRoslynProjectFactory.<>c__DisplayClass9_0.<<-ctor>g__SubscribeForProjectDataAsync|0>d.MoveNext()
<--- (Inner Exception #0) 
===================
15.05.2026 11:17:08
Project: exercise.csproj
LimitedFunctionality
StreamJsonRpc.ConnectionLostException: İstek tamamlanamadan uzak tarafla JSON-RPC bağlantısı kesildi.
   at StreamJsonRpc.JsonRpc.InvokeCoreAsync(JsonRpcRequest request, Type expectedResultType, CancellationToken cancellationToken)
   at StreamJsonRpc.JsonRpc.InvokeCoreAsync[TResult](RequestId id, String targetName, IReadOnlyList`1 arguments, IReadOnlyList`1 positionalArgumentDeclaredTypes, IReadOnlyDictionary`2 namedArgumentDeclaredTypes, CancellationToken cancellationToken, Boolean isParameterObject)
   at Microsoft.VisualStudio.Options.StaticOptions.<>c__DisplayClass0_0.<<-ctor>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.VisualStudio.Threading.AwaitExtensions.ExecuteContinuationSynchronouslyAwaiter`1.GetResult()
   at Microsoft.VisualStudio.Threading.AsyncLazy`1.<>c__DisplayClass20_0.<<GetValueAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.VisualStudio.Options.StaticOptions.IsLanguageServiceCacheEnabledAsync()
   at Microsoft.VisualStudio.Options.StaticOptions.IsLanguageServiceCacheEnabledAsync()
   at Microsoft.VisualStudio.ProjectSystem.VSCode.LanguageServices.CachingRoslynProjectFactory.CreateAsync(RoslynProjectCreationData creationData, CancellationToken cancellationToken)
   at Microsoft.VisualStudio.ProjectSystem.LanguageServices.RoslynProjectUpdateSubscription`1.<>c__DisplayClass38_1.<<OnEvaluationUpdateAsync>g__CreateProjectAsync|4>d.MoveNext()
   at Microsoft.VisualStudio.ProjectSystem.LanguageServices.RoslynProjectUpdateSubscription`1.<>c__DisplayClass38_1.<<OnEvaluationUpdateAsync>g__CreateProjectAsync|4>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.VisualStudio.ProjectSystem.LanguageServices.RoslynProjectUpdateSubscription`1.<>c__DisplayClass38_0.<<OnEvaluationUpdateAsync>g__ProcessInitialEvaluationDataAsync|1>d.MoveNext()
   at Microsoft.VisualStudio.ProjectSystem.LanguageServices.RoslynProjectUpdateSubscription`1.<>c__DisplayClass38_0.<<OnEvaluationUpdateAsync>g__ProcessInitialEvaluationDataAsync|1>d.MoveNext()
===================
15.05.2026 11:17:08
Project: ornekler.csproj
LimitedFunctionality
StreamJsonRpc.ConnectionLostException: İstek tamamlanamadan uzak tarafla JSON-RPC bağlantısı kesildi.
   at StreamJsonRpc.JsonRpc.InvokeCoreAsync(JsonRpcRequest request, Type expectedResultType, CancellationToken cancellationToken)
   at StreamJsonRpc.JsonRpc.InvokeCoreAsync[TResult](RequestId id, String targetName, IReadOnlyList`1 arguments, IReadOnlyList`1 positionalArgumentDeclaredTypes, IReadOnlyDictionary`2 namedArgumentDeclaredTypes, CancellationToken cancellationToken, Boolean isParameterObject)
   at Microsoft.VisualStudio.Options.StaticOptions.<>c__DisplayClass0_0.<<-ctor>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.VisualStudio.Threading.AwaitExtensions.ExecuteContinuationSynchronouslyAwaiter`1.GetResult()
   at Microsoft.VisualStudio.Threading.AsyncLazy`1.<>c__DisplayClass20_0.<<GetValueAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.VisualStudio.Options.StaticOptions.IsLanguageServiceCacheEnabledAsync()
   at Microsoft.VisualStudio.Options.StaticOptions.IsLanguageServiceCacheEnabledAsync()
   at Microsoft.VisualStudio.ProjectSystem.VSCode.LanguageServices.CachingRoslynProjectFactory.CreateAsync(RoslynProjectCreationData creationData, CancellationToken cancellationToken)
   at Microsoft.VisualStudio.ProjectSystem.LanguageServices.RoslynProjectUpdateSubscription`1.<>c__DisplayClass38_1.<<OnEvaluationUpdateAsync>g__CreateProjectAsync|4>d.MoveNext()
   at Microsoft.VisualStudio.ProjectSystem.LanguageServices.RoslynProjectUpdateSubscription`1.<>c__DisplayClass38_1.<<OnEvaluationUpdateAsync>g__CreateProjectAsync|4>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.VisualStudio.ProjectSystem.LanguageServices.RoslynProjectUpdateSubscription`1.<>c__DisplayClass38_0.<<OnEvaluationUpdateAsync>g__ProcessInitialEvaluationDataAsync|1>d.MoveNext()
   at Microsoft.VisualStudio.ProjectSystem.LanguageServices.RoslynProjectUpdateSubscription`1.<>c__DisplayClass38_0.<<OnEvaluationUpdateAsync>g__ProcessInitialEvaluationDataAsync|1>d.MoveNext()
===================

ProjectSystemServerFault_f93a0fec-abc8-4350-9a00-f25b52e56610.failure.txt

Steps To Reproduce

No response

Expected Behavior

No response

Environment Information

OS: [Windows]

VS Code Version [1.120.0]

Extension Version[ms-dotnettools.csdevkit ver:3.20.195]

Start with the attached ProjectSystemServerFault_f93a0fec-abc8-4350-9a00-f25b52e56610.failure.txt and reproduce project loading in VS Code 1.120.0 with C# Dev Kit 3.20.195. Trace the StreamJsonRpc connection loss through CachingRoslynProjectFactory and determine the expected notification behavior, using the reported exercise.csproj and ornekler.csproj projects as examples.