...
while evaluating ‘dischargeProperties’ at /nix/store/1mnvqhnbh07qdzaczf5p8vrybk4q449a-nixos-17.09.tar.gz/lib/modules.nix:386:25, called from /nix/store/1mnvqhnbh07qdzaczf5p8vrybk4q449a-nixos-17.09.tar.gz/lib/modules.nix:324:62:
while evaluating the attribute ‘value’ at /nix/store/1mnvqhnbh07qdzaczf5p8vrybk4q449a-nixos-17.09.tar.gz/lib/types.nix:209:55:
while evaluating the attribute ‘ExecStart’ at /nix/store/1mnvqhnbh07qdzaczf5p8vrybk4q449a-nixos-17.09.tar.gz/nixos/modules/services/web-servers/uwsgi.nix:147:9:
while evaluating the attribute ‘text’ of the derivation ‘server.json’ at /nix/store/1mnvqhnbh07qdzaczf5p8vrybk4q449a-nixos-17.09.tar.gz/pkgs/stdenv/generic/make-derivation.nix:98:11:
while evaluating the attribute ‘pkgs’ of the derivation ‘vassals’ at /nix/store/1mnvqhnbh07qdzaczf5p8vrybk4q449a-nixos-17.09.tar.gz/pkgs/stdenv/generic/make-derivation.nix:98:11:
while evaluating the attribute ‘text’ of the derivation ‘repository.json’ at /nix/store/1mnvqhnbh07qdzaczf5p8vrybk4q449a-nixos-17.09.tar.gz/pkgs/stdenv/generic/make-derivation.nix:98:11:
attribute ‘vassals’ missing, at /nix/store/1mnvqhnbh07qdzaczf5p8vrybk4q449a-nixos-17.09.tar.gz/nixos/modules/services/web-servers/uwsgi.nix:58:44
error: unable to build all machine configurations