On 07/06/2017 05:54 PM, tj5527 via nix-dev wrote: > Following the example > at http://nixos.org/nix/manual/#chap-writing-nix-expressions to build > hello package. But `nix-build -A hello` throws error "error: cannot > auto-call a function that has an argument without a default value > (‘stdenv’)" > > How can I fix this problem?
Well, apparently you try to evaluate a standalone file that specifies a function but you don't specify how to fill its parameters. It should be explained in the following section http://nixos.org/nix/manual/#sec-arguments That's how it's commonly done in nixpkgs. If you want a *separate* expression that depends on nixpkgs, you may e.g. start by adding this line to the beginning of the file: with import <nixpkgs> {}; instead of { stdenv, something1, something2, ... }: --Vladimir _______________________________________________ nix-dev mailing list nix-dev@lists.science.uu.nl https://mailman.science.uu.nl/mailman/listinfo/nix-dev
