OmniSharp ArgumentOutOfRangeException in Semantic Highlighting

[ssoher]

Issue Type: Bug

I get the below error in the OmniSharp log after opening a Unity 2019.4.17f1 project. Tested with 1.23.8 and 1.23.7, both the same. Restarting OmniSharp and VSCode doesn't change the behavior.

[fail]: OmniSharp.Stdio.Host
        ************  Response ************ 
{
  "Request_seq": 59,
  "Command": "/v2/highlight",
  "Running": true,
  "Success": false,
  "Message": "\"System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.\\r\\nParameter name: line\\r\\n   at Microsoft.CodeAnalysis.Text.LinePosition..ctor(Int32 line, Int32 character)\\r\\n   at OmniSharp.Roslyn.CSharp.Services.SemanticHighlight.SemanticHighlightService.<Handle>d__1.MoveNext() in D:\\\\a\\\\1\\\\s\\\\src\\\\OmniSharp.Roslyn.CSharp\\\\Services\\\\SemanticHighlight\\\\SemanticHighlightService.cs:line 36\\r\\n--- End of stack trace from previous location where exception was thrown ---\\r\\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\\r\\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\\r\\n   at OmniSharp.Endpoint.EndpointHandler`2.<GetFirstNotEmptyResponseFromHandlers>d__19.MoveNext()\\r\\n--- End of stack trace from previous location where exception was thrown ---\\r\\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\\r\\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\\r\\n   at OmniSharp.Endpoint.EndpointHandler`2.<HandleRequestForLanguage>d__20.MoveNext() in D:\\\\a\\\\1\\\\s\\\\src\\\\OmniSharp.Host\\\\Endpoint\\\\EndpointHandler.cs:line 230\\r\\n--- End of stack trace from previous location where exception was thrown ---\\r\\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\\r\\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\\r\\n   at OmniSharp.Endpoint.EndpointHandler`2.<Process>d__16.MoveNext() in D:\\\\a\\\\1\\\\s\\\\src\\\\OmniSharp.Host\\\\Endpoint\\\\EndpointHandler.cs:line 131\\r\\n--- End of stack trace from previous location where exception was thrown ---\\r\\n   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\\r\\n   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\\r\\n   at OmniSharp.Stdio.Host.<HandleRequest>d__13.MoveNext() in D:\\\\a\\\\1\\\\s\\\\src\\\\OmniSharp.Stdio\\\\Host.cs:line 215\"",
  "Body": null,
  "Seq": 137,
  "Type": "response"
}

Extension version: 1.23.8
VS Code version: Code 1.52.1 (ea3859d4ba2f3e577a159bc91e3074c5d85c0523, 2020-12-16T16:34:46.910Z)
OS version: Windows_NT x64 10.0.18362

[divinebovine]

I'm receiving a very similar error. I had these with analyzers turned on as well as turned off.

        ************  Response ************ 
{
  "Request_seq": 10,
  "Command": "/updatebuffer",
  "Running": true,
  "Success": false,
  "Message": "\"System.ArgumentException: Changes must be within bounds of SourceText\\nParameter name: changes\\n  at Microsoft.CodeAnalysis.Text.SourceText.WithChanges (System.Collections.Generic.IEnumerable`1[T] changes) [0x00059] in <02f1a35137194cc3b7bab26f0cb540aa>:0 \\n  at OmniSharp.Roslyn.BufferManager.UpdateBufferAsync (OmniSharp.Models.Request request, System.Boolean isCreate) [0x003a0] in <52f5f577212a4b0da7fdb8528dac09a0>:0 \\n  at OmniSharp.Roslyn.CSharp.Services.Buffer.UpdateBufferService.Handle (OmniSharp.Models.UpdateBuffer.UpdateBufferRequest request) [0x00073] in <88f2819c12ee464e94d6700e849310cf>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].GetFirstNotEmptyResponseFromHandlers (OmniSharp.Endpoint.Exports.ExportHandler`2[TRequest,TResponse][] handlers, TRequest request) [0x00099] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].HandleRequestForLanguage (System.String language, TRequest request, OmniSharp.Protocol.RequestPacket packet) [0x00163] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].Process (OmniSharp.Protocol.RequestPacket packet, OmniSharp.Endpoint.LanguageModel model, Newtonsoft.Json.Linq.JToken requestObject) [0x0024b] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Stdio.Host.HandleRequest (System.String json, Microsoft.Extensions.Logging.ILogger logger) [0x000e7] in <60d68949688146858c57cddcbc6c56f5>:0 \"",
  "Body": null,
  "Seq": 37,
  "Type": "response"
}
[fail]: OmniSharp.Stdio.Host
        ************  Response ************ 
{
  "Request_seq": 11,
  "Command": "/updatebuffer",
  "Running": true,
  "Success": false,
  "Message": "\"System.ArgumentException: Changes must be within bounds of SourceText\\nParameter name: changes\\n  at Microsoft.CodeAnalysis.Text.SourceText.WithChanges (System.Collections.Generic.IEnumerable`1[T] changes) [0x00059] in <02f1a35137194cc3b7bab26f0cb540aa>:0 \\n  at OmniSharp.Roslyn.BufferManager.UpdateBufferAsync (OmniSharp.Models.Request request, System.Boolean isCreate) [0x003a0] in <52f5f577212a4b0da7fdb8528dac09a0>:0 \\n  at OmniSharp.Roslyn.CSharp.Services.Buffer.UpdateBufferService.Handle (OmniSharp.Models.UpdateBuffer.UpdateBufferRequest request) [0x00073] in <88f2819c12ee464e94d6700e849310cf>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].GetFirstNotEmptyResponseFromHandlers (OmniSharp.Endpoint.Exports.ExportHandler`2[TRequest,TResponse][] handlers, TRequest request) [0x00099] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].HandleRequestForLanguage (System.String language, TRequest request, OmniSharp.Protocol.RequestPacket packet) [0x00163] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].Process (OmniSharp.Protocol.RequestPacket packet, OmniSharp.Endpoint.LanguageModel model, Newtonsoft.Json.Linq.JToken requestObject) [0x0024b] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Stdio.Host.HandleRequest (System.String json, Microsoft.Extensions.Logging.ILogger logger) [0x000e7] in <60d68949688146858c57cddcbc6c56f5>:0 \"",
  "Body": null,
  "Seq": 39,
  "Type": "response"
}
[info]: OmniSharp.Roslyn.CSharp.Services.Diagnostics.CSharpDiagnosticWorkerWithAnalyzers
        Solution initialized -> queue all documents for code analysis. Initial document count: 40.
[fail]: OmniSharp.Stdio.Host
        ************  Response ************ 
{
  "Request_seq": 22,
  "Command": "/completion",
  "Running": true,
  "Success": false,
  "Message": "\"System.IndexOutOfRangeException: Index was outside the bounds of the array.\\n  at Microsoft.CodeAnalysis.Text.StringText.get_Item (System.Int32 position) [0x00000] in <02f1a35137194cc3b7bab26f0cb540aa>:0 \\n  at Microsoft.CodeAnalysis.CSharp.Completion.Providers.CompletionUtilities.IsTriggerCharacter (Microsoft.CodeAnalysis.Text.SourceText text, System.Int32 characterPosition, Microsoft.CodeAnalysis.Options.OptionSet options) [0x00000] in <f27e10a0541d48c78a58e09616722278>:0 \\n  at Microsoft.CodeAnalysis.CSharp.Completion.Providers.AttributeNamedParameterCompletionProvider.IsInsertionTrigger (Microsoft.CodeAnalysis.Text.SourceText text, System.Int32 characterPosition, Microsoft.CodeAnalysis.Options.OptionSet options) [0x00000] in <f27e10a0541d48c78a58e09616722278>:0 \\n  at Microsoft.CodeAnalysis.Completion.CommonCompletionProvider.ShouldTriggerCompletion (Microsoft.CodeAnalysis.Text.SourceText text, System.Int32 position, Microsoft.CodeAnalysis.Completion.CompletionTrigger trigger, Microsoft.CodeAnalysis.Options.OptionSet options) [0x00012] in <cdb17b8d45764277b24834945854adde>:0 \\n  at Microsoft.CodeAnalysis.Completion.CompletionProvider.ShouldTriggerCompletion (Microsoft.CodeAnalysis.Host.HostLanguageServices languageServices, Microsoft.CodeAnalysis.Text.SourceText text, System.Int32 caretPosition, Microsoft.CodeAnalysis.Completion.CompletionTrigger trigger, Microsoft.CodeAnalysis.Options.OptionSet options) [0x00000] in <cdb17b8d45764277b24834945854adde>:0 \\n  at Microsoft.CodeAnalysis.Completion.CompletionServiceWithProviders+<>c__DisplayClass36_0.<ShouldTriggerCompletion>b__0 (Microsoft.CodeAnalysis.Completion.CompletionProvider p) [0x00013] in <cdb17b8d45764277b24834945854adde>:0 \\n  at System.Linq.ImmutableArrayExtensions.Any[T] (System.Collections.Immutable.ImmutableArray`1[T] immutableArray, System.Func`2[T,TResult] predicate) [0x00025] in <be358f84962848a48784e4a9d001abe1>:0 \\n  at Roslyn.Utilities.ConcatImmutableArray`1[T].Any (System.Func`2[T,TResult] predicate) [0x00000] in <1b72cf009970430282a46c2931a92a23>:0 \\n  at Microsoft.CodeAnalysis.Completion.CompletionServiceWithProviders.ShouldTriggerCompletion (Microsoft.CodeAnalysis.Project project, Microsoft.CodeAnalysis.Text.SourceText text, System.Int32 caretPosition, Microsoft.CodeAnalysis.Completion.CompletionTrigger trigger, System.Collections.Immutable.ImmutableHashSet`1[T] roles, Microsoft.CodeAnalysis.Options.OptionSet options) [0x000b9] in <cdb17b8d45764277b24834945854adde>:0 \\n  at Microsoft.CodeAnalysis.Completion.CompletionServiceWithProviders.ShouldTriggerCompletion (Microsoft.CodeAnalysis.Text.SourceText text, System.Int32 caretPosition, Microsoft.CodeAnalysis.Completion.CompletionTrigger trigger, System.Collections.Immutable.ImmutableHashSet`1[T] roles, Microsoft.CodeAnalysis.Options.OptionSet options) [0x00014] in <cdb17b8d45764277b24834945854adde>:0 \\n  at OmniSharp.Roslyn.CSharp.Services.Completion.CompletionService.Handle (OmniSharp.Models.v1.Completion.CompletionRequest request) [0x001ca] in <88f2819c12ee464e94d6700e849310cf>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].GetFirstNotEmptyResponseFromHandlers (OmniSharp.Endpoint.Exports.ExportHandler`2[TRequest,TResponse][] handlers, TRequest request) [0x00099] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].HandleRequestForLanguage (System.String language, TRequest request, OmniSharp.Protocol.RequestPacket packet) [0x00163] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].Process (OmniSharp.Protocol.RequestPacket packet, OmniSharp.Endpoint.LanguageModel model, Newtonsoft.Json.Linq.JToken requestObject) [0x0024b] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Stdio.Host.HandleRequest (System.String json, Microsoft.Extensions.Logging.ILogger logger) [0x000e7] in <60d68949688146858c57cddcbc6c56f5>:0 \"",
  "Body": null,
  "Seq": 52,
  "Type": "response"
}
[fail]: OmniSharp.Roslyn.CSharp.Services.Refactoring.V2.GetCodeActionsService
        Error computing refactorings for Roslynator.CSharp.Refactorings.RoslynatorCodeRefactoringProvider
System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: position
  at Microsoft.CodeAnalysis.SyntaxNode.FindTokenCore (System.Int32 position, System.Boolean findInsideTrivia) [0x0002e] in <02f1a35137194cc3b7bab26f0cb540aa>:0 
  at Microsoft.CodeAnalysis.SyntaxNode.FindToken (System.Int32 position, System.Boolean findInsideTrivia) [0x00000] in <02f1a35137194cc3b7bab26f0cb540aa>:0 
  at Microsoft.CodeAnalysis.SyntaxNode.FindTokenCore (System.Int32 position, System.Func`2[T,TResult] stepInto) [0x00000] in <02f1a35137194cc3b7bab26f0cb540aa>:0 
  at Microsoft.CodeAnalysis.SyntaxNode.FindToken (System.Int32 position, System.Func`2[T,TResult] findInsideTrivia) [0x00000] in <02f1a35137194cc3b7bab26f0cb540aa>:0 
  at Microsoft.CodeAnalysis.SyntaxNode.FindTokenCore (System.Int32 position, System.Boolean findInsideTrivia) [0x00003] in <02f1a35137194cc3b7bab26f0cb540aa>:0 
  at Microsoft.CodeAnalysis.SyntaxNode.FindToken (System.Int32 position, System.Boolean findInsideTrivia) [0x00000] in <02f1a35137194cc3b7bab26f0cb540aa>:0 
  at Roslynator.CSharp.Refactorings.RefactoringContext.ComputeRefactoringsForTokenInsideTrivia () [0x00022] in <7341b6e5839a42afa301000340a1506f>:0 
  at Roslynator.CSharp.Refactorings.RefactoringContext.ComputeRefactoringsAsync () [0x0001e] in <7341b6e5839a42afa301000340a1506f>:0 
  at Roslynator.CSharp.Refactorings.RoslynatorCodeRefactoringProvider.ComputeRefactoringsAsync (Microsoft.CodeAnalysis.CodeRefactorings.CodeRefactoringContext context) [0x000f9] in <7341b6e5839a42afa301000340a1506f>:0 
  at OmniSharp.Roslyn.CSharp.Services.Refactoring.V2.BaseCodeActionService`2[TRequest,TResponse].CollectRefactoringActions (Microsoft.CodeAnalysis.Document document, Microsoft.CodeAnalysis.Text.TextSpan span, System.Collections.Generic.List`1[T] codeActions) [0x0010b] in <88f2819c12ee464e94d6700e849310cf>:0 

C# Extension: 1.23.8
vscode: 1.52.1
OS: Windows_NT x64 10.0.19042

[filipw]

@ssoher this is an issue in semantic highlighting, where VS Code or the extension submits an invalid line number (-1).
This will be handled here on the server side OmniSharp/omnisharp-roslyn#2055 but needs to be separately investigated in the extension anyway. Ultimately it only affects initial highlight request and it shouldn't cause any visible issues.

@divinebovine your problem is different, although the exception looks similar. Your issue is caused by some broken (diverged) state between the extension and the server, which then causes a permanent line mismatch between the client and server side (possibly caused by #4088 and the related incremental buffer changes). It would be good if you could open a new issue for that and describe some way to reproduce this.

[ssoher]

@filipw it produced thousands of errors (false flag 'problems' in my workspace) actually and intellisense was broken too. could not reproduce after re-booting the system and everything seems to be working correctly now.
Some additional info that may help; I've also deleted the sln, assembly reference cache and csproj files and let Unity re-create them before re-opening the folder in VSCode. Because this problem happened right after updating Unity to a newer version so I have no clue if updating Unity would cause such a problem, never happened before Unity 2019.4.17f1.

[filipw]

yep it looks like it is caused by a different problem. when the project is not properly loaded semantic highlighting won't work too and the exception here comes from the highlighting endpoint

[jetjo]

I'm receiving a very similar error too!!!
[fail]: OmniSharp.Stdio.Host ************ Response ************ { "Request_seq": 9, "Command": "/v2/highlight", "Running": true, "Success": false, "Message": "\"System.ArgumentOutOfRangeException: 指定的参数已超出有效值的范围。\\r\\n参数名: line\\r\\n 在 Microsoft.CodeAnalysis.Text.LinePosition..ctor(Int32 line, Int32 character)\\r\\n 在 OmniSharp.Roslyn.CSharp.Services.SemanticHighlight.SemanticHighlightService.<Handle>d__1.MoveNext() 位置 D:\\\\a\\\\1\\\\s\\\\src\\\\OmniSharp.Roslyn.CSharp\\\\Services\\\\SemanticHighlight\\\\SemanticHighlightService.cs:行号 36\\r\\n--- 引发异常的上一位置中堆栈跟踪的末尾 ---\\r\\n 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\\r\\n 在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\\r\\n 在 OmniSharp.Endpoint.EndpointHandler2.d__19.MoveNext()\r\n--- 引发异常的上一位置中堆栈跟踪的末尾 ---\r\n 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n 在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n 在 OmniSharp.Endpoint.EndpointHandler2.<HandleRequestForLanguage>d__20.MoveNext() 位置 D:\\\\a\\\\1\\\\s\\\\src\\\\OmniSharp.Host\\\\Endpoint\\\\EndpointHandler.cs:行号 230\\r\\n--- 引发异常的上一位置中堆栈跟踪的末尾 ---\\r\\n 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\\r\\n 在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\\r\\n 在 OmniSharp.Endpoint.EndpointHandler2.d__16.MoveNext() 位置 D:\\a\\1\\s\\src\\OmniSharp.Host\\Endpoint\\EndpointHandler.cs:行号 131\r\n--- 引发异常的上一位置中堆栈跟踪的末尾 ---\r\n 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n 在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n 在 OmniSharp.Stdio.Host.d__13.MoveNext() 位置 D:\\a\\1\\s\\src\\OmniSharp.Stdio\\Host.cs:行号 215"",
"Body": null,
"Seq": 36,
"Type": "response"
}
[fail]: OmniSharp.Stdio.Host
************ Response ************
{
"Request_seq": 15,
"Command": "/v2/highlight",
"Running": true,
"Success": false,
"Message": ""System.ArgumentOutOfRangeException: 指定的参数已超出有效值的范围。\r\n参数名: line\r\n 在 Microsoft.CodeAnalysis.Text.LinePosition..ctor(Int32 line, Int32 character)\r\n 在 OmniSharp.Roslyn.CSharp.Services.SemanticHighlight.SemanticHighlightService.d__1.MoveNext() 位置 D:\\a\\1\\s\\src\\OmniSharp.Roslyn.CSharp\\Services\\SemanticHighlight\\SemanticHighlightService.cs:行号 36\r\n--- 引发异常的上一位置中堆栈跟踪的末尾 ---\r\n 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n 在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n 在 OmniSharp.Endpoint.EndpointHandler2.<GetFirstNotEmptyResponseFromHandlers>d__19.MoveNext()\\r\\n--- 引发异常的上一位置中堆栈跟踪的末尾 ---\\r\\n 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\\r\\n 在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\\r\\n 在 OmniSharp.Endpoint.EndpointHandler2.d__20.MoveNext() 位置 D:\\a\\1\\s\\src\\OmniSharp.Host\\Endpoint\\EndpointHandler.cs:行号 230\r\n--- 引发异常的上一位置中堆栈跟踪的末尾 ---\r\n 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\r\n 在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\r\n 在 OmniSharp.Endpoint.EndpointHandler2.<Process>d__16.MoveNext() 位置 D:\\\\a\\\\1\\\\s\\\\src\\\\OmniSharp.Host\\\\Endpoint\\\\EndpointHandler.cs:行号 131\\r\\n--- 引发异常的上一位置中堆栈跟踪的末尾 ---\\r\\n 在 System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()\\r\\n 在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)\\r\\n 在 OmniSharp.Stdio.Host.<HandleRequest>d__13.MoveNext() 位置 D:\\\\a\\\\1\\\\s\\\\src\\\\OmniSharp.Stdio\\\\Host.cs:行号 215\"", "Body": null, "Seq": 43, "Type": "response" } [info]: OmniSharp.Roslyn.CSharp.Services.Diagnostics.CSharpDiagnosticWorkerWithAnalyzers Solution initialized -> queue all documents for code analysis. Initial document count: 5.

[jetjo]

i had to uninstall it ,try idea!!!!

[jannickj]

I'm getting a similar problem and my highlighting is completely broken (using semantic highligting).

random error:

[fail]: OmniSharp.Stdio.Host
        ************  Response ************ 
{
  "Request_seq": 136,
  "Command": "/v2/highlight",
  "Running": true,
  "Success": false,
  "Message": "\"System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.\\nParameter name: character\\n  at Microsoft.CodeAnalysis.Text.LinePosition..ctor (System.Int32 line, System.Int32 character) [0x00013] in <02f1a35137194cc3b7bab26f0cb540aa>:0 \\n  at OmniSharp.Roslyn.CSharp.Services.SemanticHighlight.SemanticHighlightService.Handle (OmniSharp.Models.SemanticHighlight.SemanticHighlightRequest request) [0x00146] in <88f2819c12ee464e94d6700e849310cf>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].GetFirstNotEmptyResponseFromHandlers (OmniSharp.Endpoint.Exports.ExportHandler`2[TRequest,TResponse][] handlers, TRequest request) [0x00099] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].HandleRequestForLanguage (System.String language, TRequest request, OmniSharp.Protocol.RequestPacket packet) [0x00163] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Endpoint.EndpointHandler`2[TRequest,TResponse].Process (OmniSharp.Protocol.RequestPacket packet, OmniSharp.Endpoint.LanguageModel model, Newtonsoft.Json.Linq.JToken requestObject) [0x0024b] in <954ed0cf974c4f038a543c1ed1dfaa98>:0 \\n  at OmniSharp.Stdio.Host.HandleRequest (System.String json, Microsoft.Extensions.Logging.ILogger logger) [0x000e7] in <60d68949688146858c57cddcbc6c56f5>:0 \"",
  "Body": null,
  "Seq": 395,
  "Type": "response"
}

anyone knows about a omnisharp version that's not broken I can switch to?

edit: "omnisharp.path": "1.37.2-beta.105" seems to work.

[filipw]

anyone knows about a omnisharp version that's not broken I can switch to?

edit: "omnisharp.path": "1.37.2-beta.105" seems to work.

the error is transient, caused by a corrupt state between the editor and server, a restart should fix it.

there were no changes to semantic highlighting in OmniSharp in several months. As I linked, possible cause is #4088 but that's just my guess

[jannickj]

anyone knows about a omnisharp version that's not broken I can switch to?
edit: "omnisharp.path": "1.37.2-beta.105" seems to work.

the error is transient, caused by a corrupt state between the editor and server, a restart should fix it.

there were no changes to semantic highlighting in OmniSharp in several months. As I linked, possible cause is #4088 but that's just my guess

I've restarted multple times + switching back to the newest re-breakes it (and it requires a restart to switch), so either a corrupt file is cached somewhere on my pc or it's something else.

[filipw]

are you able to share a project that consistently reproduces this? I would like to be able to pin it down
There were no OmniSharp server changes to semantic highlighting since 1.34.15 😄 but perhaps something else is causing this

[jannickj]

are you able to share a project that consistently reproduces this? I would like to be able to pin it down
There were no OmniSharp server changes to semantic highlighting since 1.34.15 but perhaps something else is causing this

Sadly not :(, proprietary project (aka at my work). I'll see if I can create a project that produces similar issues.

In the mean time, my spec:
OS: Ubuntu 20.04
dotnet: 5.0
csharp: 9.0
vscode 1.52.1 using (C# plugin 1.23.8)