error while evaluating the attribute 'nativeBuildInputs'
hi,
I wanted to give it a try but it fails when I enter the directory :
~ ❯❯❯ cd code/redox-nix/redox
direnv: loading ../.envrc
direnv: using nix
error: while evaluating the attribute 'nativeBuildInputs' of the derivation 'nix-shell' at /nix/store/3yfcip2l167sqpsl298s1j6nypywrycv-nixos-19.09pre184803.d567c486ca5/nixos/pkgs/build-support/mkshell/default.nix:28:3:
while evaluating 'chooseDevOutputs' at /nix/store/3yfcip2l167sqpsl298s1j6nypywrycv-nixos-19.09pre184803.d567c486ca5/nixos/lib/attrsets.nix:474:22, called from undefined position:
while evaluating 'mergeInputs' at /nix/store/3yfcip2l167sqpsl298s1j6nypywrycv-nixos-19.09pre184803.d567c486ca5/nixos/pkgs/build-support/mkshell/default.nix:14:17, called from /nix/store/3yfcip2l167sqpsl298s1j6nypywrycv-nixos-19.09pre184803.d567c486ca5/nixos/pkgs/build-support/mkshell/default.nix:32:23:
value is null while a list was expected, at /home/wagnerf/code/redox-nix/shell.nix:56:34
direnv: error unmarshal() zlib opening: unexpected EOF
I'm not really mastering nix right so I'm not sure how to help.