How to install C# dependencies in Vscode?

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1

Hi, I’m new to NixOS.

I’ve installed vscode and the csharp extension using configuration.nix

  environment.systemPackages = with pkgs;
    let
      vscodeWithExtension = vscode-with-extensions.override {
        # When the extension is already available in the default extensions set.
        vscodeExtensions = with vscode-extensions; [
          bbenoist.Nix
        ]
        # Concise version from the vscode market place when not available in the default set.
        ++ vscode-utils.extensionsFromVscodeMarketplace [
          {
            name = "csharp";
            publisher = "ms-vscode";
            version = "1.21.3";
            sha256 = "0qaq8yxyg44192ppslk4ij6nr6bd8cb52fbhx1qdh5v7ljb9ls51";
          }
        ];
      };
    in
      [
        p7zip
        firefox
        myNeovim
        keepassx2
        git
        vscodeWithExtension
        dotnet-sdk
      ];

but when I run Vscode in a folder with a C# project I get

Installing C# dependencies...
Platform: linux, x86_64, name=nixos, version=19.03.173522.021d733ea3f

Failed at stage: touchBeginFile
Error: EROFS: read-only file system, mkdir '/nix/store/awdxvn8ckc29gcnx8iymf363hipmiwyg-vscode-extensions-1.35.1/share/vscode/extensions/ms-vscode.csharp/.omnisharp'

and

Starting OmniSharp server at 9/23/2019, 5:23:18 AM
    Target: /home/jon/projects/Mahjong

[ERROR] Error: spawn /nix/store/awdxvn8ckc29gcnx8iymf363hipmiwyg-vscode-extensions-1.35.1/share/vscode/extensions/ms-vscode.csharp/.omnisharp/1.34.3/run ENOENT

in their respective logs.

Is there a way to make this work?

edit: I see now that the .omnisharp folder doesn’t even exist so I guess that means I need to install it somehow?

1 Like
2

me too error…
so install just vscode & vscode-with-extensions (without configuration)
and.
ui install extension… download to HOME directory.
but… can’t set unity engine. g,.g.

3

Unfortunately there’s no way around this with how vscode is currently packaged. If we use a buildFHSUserEnv, then it might be possible because there is a writable directory. There might be a way for telling the plugin to use HOME or something, instead of the installation path.

1 Like