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CSProj Error : ASP.NET Core

See original GitHub issue

Issue Description

Hello, I got error for not having sln on the project, does this extension doesn’t support .csproj file and ASP.NET?

[Error  - 15:05:51] Starting client failed 
  Message: Internal Error - System.ArgumentException: OmniSharp only supports being launched with a directory path or a path to a solution (.sln) file.

Parameter name: path

   at OmniSharp.Services.OmniSharpEnvironment..ctor(String path, Int32 hostPid, LogLevel logLevel, String[] additionalArguments) in D:\a\1\s\src\OmniSharp.Host\Services\OmniSharpEnvironment.cs:line 38

   at OmniSharp.LanguageServerProtocol.LanguageServerHost.CreateCompositionHost(InitializeParams initializeParams) in D:\a\1\s\src\OmniSharp.LanguageServerProtocol\LanguageServerHost.cs:line 84

   at OmniSharp.LanguageServerProtocol.LanguageServerHost.Initialize(ILanguageServer server, InitializeParams initializeParams) in D:\a\1\s\src\OmniSharp.LanguageServerProtocol\LanguageServerHost.cs:line 157

   at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()

   at System.Threading.Tasks.Task.WhenAll(IEnumerable`1 tasks)

   at OmniSharp.Extensions.LanguageServer.Server.LanguageServer.<MediatR-IRequestHandler<OmniSharp-Extensions-LanguageServer-Protocol-Models-InitializeParams\,OmniSharp-Extensions-LanguageServer-Protocol-Models-InitializeResult>-Handle>d__55.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at OmniSharp.Extensions.LanguageServer.Server.Pipelines.ResolveCommandPipeline`2.<Handle>d__5.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at MediatR.Pipeline.RequestPostProcessorBehavior`2.<Handle>d__2.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at MediatR.Pipeline.RequestPreProcessorBehavior`2.<Handle>d__2.MoveNext()

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at OmniSharp.Extensions.JsonRpc.RequestRouterBase`1.<RouteRequest>d__6.MoveNext()
  Code: -32602

Thank you