🐞 CSharp (C#) Language Server can't be installed. #2168

Activity

1. ShikiSuen

   added

   bugSomething isn't workingSomething isn't working

   on Feb 15, 2026
2. austincondiff

   added this to CodeEdit Projecton Feb 15, 2026
3. github-project-automation

   moved this to 🆕 New in CodeEdit Projecton Feb 15, 2026
4. vksvicky commented on Jul 15, 2026

   

   vksvicky

   on Jul 15, 2026

   Last edited by vksvicky

   Contributor

   More actions

   Root cause

   “Csharp Language Server” maps to the Mason package csharp-language-server, which is installed via NuGet:

   pkg:nuget/csharp-ls@0.24.0
   

   CodeEdit’s registry installer currently understands pkg:cargo, pkg:npm, pkg:pypi, pkg:gem, pkg:golang, and pkg:github only. There is no parser or package manager for pkg:nuget/, so installMethod is nil and installation fails with PackageManagerError (the alert surfaces this poorly as error 3).

   This matches an existing TODO in InstallationMethod.packageManager for NuGet (and Opam / Gem / Composer).

   Impact

   The same gap affects other NuGet-based language servers in the registry (e.g. roslyn-language-server, fsautocomplete), not only C#.

   Workaround

   Until NuGet support lands, try a GitHub-backed C# server such as OmniSharp (omnisharp / omnisharp-mono), which uses pkg:github and should be installable with the existing GitHub installer. Alternatively, install csharp-ls manually with the .NET SDK (dotnet tool install).

   Suggested fix

   1. Parse pkg:nuget/… and implement a NuGet / dotnet tool installer.
   2. Improve UX for unsupported package types (clear message, or disable Install) so users do not see opaque PackageManagerError codes.

   I shall implement this approach, hopefully this is ok?

   👍React with 👍1Reacted by ShikiSuen