[LSP] Failed to handle request textDocument/didChange

[luizribeiro]

I'm getting System.InvalidOperationException: Service not initialized exceptions on the textDocument/didChange request. The same thing happens for the textDocument/didSave request.

The full stack trace looks like:

Failed to handle request textDocument/didChange - System.InvalidOperationException: Service not initialized.
  at OmniSharp.Cake.Services.CakeScriptService.Generate (Cake.Scripting.Abstractions.Models.FileChange fileChange) [0x0000f] in <77588f8cbed248559ee259dbaf27a112>:0 
  at OmniSh
arp.Cake.Services.RequestHandlers.Buffer.UpdateBufferHandler.Handle (OmniSharp.Models.UpdateBuffer.UpdateBufferRequest request) [0x0016f] in <77588f8cbed248559ee259dbaf27a112>:0 
  at OmniSharp.LanguageServerProtocol.Handlers.TextDocumentSyncHandler.Handle (OmniSharp.Extensions.LanguageServer.Protocol.Models.DidSaveTextDocumentParams notification, System.Thread
ing.CancellationToken cancellationToken) [0x000c4] in <64c75d0755f24d1c8d512732bdce880e>:0 
  at OmniSharp.Extensions.LanguageServer.Server.Pipelines.ResolveCommandPipeline`2[TRequest,TResponse].Handle (TRequest request, System.Threading.CancellationToken cancellationToken, OmniSharp.Extensions.Embedded.MediatR.RequestHandlerDelegate`1[TResponse] next) [0x000e1
] in <cdcdd2bceac34772b5fb2962192e6b77>:0 
  at OmniSharp.Extensions.LanguageServer.Server.LspRequestRouter.RouteNotification (OmniSharp.Extensions.JsonRpc.IHandlerDescriptor descriptor, OmniSharp.Extensions.JsonRpc.Server.Notification notification) [0x0023d] in <cdcdd2bceac34772b5fb2962192e6b77>:0

It's a bit unexpected that this is coming from CakeScriptService. I do not use Cake and the contents of the omnisharp.json file on my project's root are:

{
  "dotnet": {
    "enabled": true,
    "enablePackageRestore": false
  }
}

It looks like CakeScriptService is being used for my .cs files for some reason? If I remove ExportProjectSystem(ProjectSystemNames.CakeProjectSystem) from CakeProjectSystem I can get past this error.

• Omnisharp's stdin: stdin.log
• Omnisharp's stdout: stdout.log

Any idea if this is a problem with my client, with omnisharp's LSP or with my own project?

[sebasmonia]

@luizribeiro how do you remove CakeScriptService and does it make the didChange return something meaningful?

Sorry not familiar with Cake at all.

[bjorkstromm]

@luizribeiro what client are you using? I'm currently unable to reproduce with VSCode when running OmniSharp-Roslyn on LSP mode.

[bjorkstromm]

This was caused by an issue in the LSP libs here OmniSharp/csharp-language-server-protocol#156 will be fixed via #1562

[luizribeiro]

Sorry for the delayed reply here.

I am using ale on vim. I have been working on an ale linter that will use omnisharp-roslyn.

All I did to disable CakeScriptService was comment out ExportProjectSystem like I mentioned above.

@mholo65, I believe you are correct here. I will try again once #1562 is merged.

[sebasmonia]

Followed the step to disable CakeScriptService, and I see no exception. But don't get completion either.

[sebasmonia]

This can be closed after the latest release.

[bjorkstromm]

Fixed by #1562