NixVim has broken nix flake after a update

[ebadfd]

Hi all,

Recently I've been experiencing an issue with nixvim, I've done a nix flake update today after the update I encountered this issue

error:
       … while calling the 'head' builtin
         at /nix/store/vdyq3cl640n39sclkc8br4xgd09fdj2w-source/lib/attrsets.nix:1574:11:
         1573|         || pred here (elemAt values 1) (head values) then
         1574|           head values
             |           ^
         1575|         else

       … while evaluating the attribute 'value'
         at /nix/store/vdyq3cl640n39sclkc8br4xgd09fdj2w-source/lib/modules.nix:927:9:
          926|     in warnDeprecation opt //
          927|       { value = addErrorContext "while evaluating the option `${showOption loc}':" value;
             |         ^
          928|         inherit (res.defsFinal') highestPrio;

       … while evaluating the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/vdyq3cl640n39sclkc8br4xgd09fdj2w-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `system.systemBuilderArgs':

       … while evaluating definitions from `/nix/store/vdyq3cl640n39sclkc8br4xgd09fdj2w-source/nixos/modules/system/activation/activatable-system.nix':

       … while evaluating the option `system.activationScripts.etc.text':

       … while evaluating definitions from `/nix/store/vdyq3cl640n39sclkc8br4xgd09fdj2w-source/nixos/modules/system/etc/etc-activation.nix':

       … while evaluating definitions from `/nix/store/vdyq3cl640n39sclkc8br4xgd09fdj2w-source/nixos/modules/system/etc/etc.nix':

       … while evaluating the option `environment.etc.dbus-1.source':

       … while evaluating the default value of option `plugins.lsp.servers.graphql.cmd`

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: nodePackages.graphql-language-service-cli cannot be found in pkgs

There are complains that the nodePackages.graphql-language-service-cli cannot be found in pkgs; search for this package as well and yes indeed its not available

Anyone else ran in to a similar situation? any idea how this can be resolved?

[ebadfd]

Sorry I had misunderstood the error, https://nix-community.github.io/nixvim/user-guide/faq.html#how-do-i-solve-name-cannot-be-found-in-pkgs

This documentation will be helpful to resolve the issue.

[GaetanLepage]

Have you been able to make it work?

[ebadfd]

Yeah the issue in my case was the nixvim nixpkgs i've added the unstable while defining the url as the stable

[MattSturgeon]

We need to update those docs a little:

It is now possible to mix and match a stable system with an unstable nixvim, if you allow nixvim to specify its own nixpkgs revision.

I.e. if you don't define an inputs.follows for nixvim's nixpkgs in your flake.nix