Warning when running nix-darwin

[arximboldi]

I keep getting this warning:

warning: Nix search path entry '/nix/var/nix/profiles/per-user/root/channels' does not exist, ignoring

This is a fresh install on MacOS Sierra, using the installer procedure. Is this a sympton that I did something wrong? How do I get rid of such warning?

[LnL7]

It's related to #140, multiple paths are added for compatibility with both the single and multi-user install. But nix complains if one of the defined search paths does not exist.

[ericpashman]

FYI, see my comment here on how to reset your NIX_PATH to remove this warning.

Note my caveat that updating nix.nixPath and running darwin-rebuild switch for some reason does not update the NIX_PATH environment variable until you source your setEnvironment script.

[kubukoz]

Based on @ericpashman's linked response, this is what I went with:

{
nix.nixPath = pkgs.lib.mkForce [{
    darwin-config = builtins.concatStringsSep ":" [
      "$HOME/.nixpkgs/darwin-configuration.nix"
      "$HOME/.nix-defexpr/channels"
    ];
  }];
}

Seems to work.

[Eason0210]

Thanks @kubukoz , your solution works for me on latest MacOS big sur.