Vscode: nixd still completes old nixpkgs packages

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1

I updated the nixpkgs input from 24.11 to unstable in flake.nix, then updated the flake.lock. Now when I nixos-rebuild, it tells me “nerdfonts” is now “nerd-fonts.”. However, in vscode with the Nix IDE plugin, and the following in User/settings.json:

  "nix.enableLanguageServer": true,
  "nix.serverPath": "nixd",

the autocompletion still finds “pkgs.nerdfonts” and no “pkgs.nerd-fonts”.

Do you know how nixd determines which nixpkgs it should use?

2

Same when I load nixpkgs with :l <nixpkgs> in the nix repl. I have a NIX_PATH of nixpkgs=flake:nixpkgs. Not sure how that resolves neither, it also works in folders without a flake.nix

3

It uses the nixpkgs entry of the global flake registry located at /etc/nix/registry.json.

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4

Thanks! That’s probably what nixd takes as well. At least after upgrading the system, the global flake’s registry’s nixpkgs points to unstable, and both nix repl and vscode find the new packages.