Latexmk not finding my installed packages

Help
1

Currently I’m trying to get the vimtex plugin working with neovim and my local installation of texlive. The vimtex plugin (by default) uses the following command to compile a document:

latexmk -verbose -file-line-error -synctex=1 -interaction=nonstopmode -pdf file.tex

When I run this command in my terminal on a document I want to compile, everything works as expected. I get the appropriate pdf output with no errors. However, when I open neovim with vimtex and compile from within neovim, I get the errors:

main.tex|| File `darkmode.sty' not found.
main.tex|3 error| Emergency stop.
main.tex|3 error| Fatal error occurred, no output PDF file produced!

This behavior is with the texliveFull package from nixpkgs installed. However, I get the same behavior when I try to install the problem package with:

 (texlive.withPackages (ps: with ps; [
      darkmode
      latexmk
      # other packages
    ]))

Is there something I might be missing about how to install packages for latex?

2

I figured out the issue. I use NixVim to configure my neovim. So, when I use NixVim to enable the vimtex plugin (programs.nixvim.plugins.vimtex.enable = true), I also needed to specify the texlivePackage the vimtex would use (texlivePackage = pkgs.texliveFull). Without this second line, I guess vimtex just doesn’t know what to do? I’m not really sure, but that’s what fixed it for me.