[Nix-dev] Error evaluating nixpkgs

[maggesi at math.unifi.it]

Hi,

since many days now I get the following error while trying to update  
my system:

# nix-env -u \* --show-trace
error: while evaluating the function at  
`/etc/nixos/nixpkgs/pkgs/lib/customisation.nix:52:24':
while evaluating the function at  
`/etc/nixos/nixpkgs/pkgs/applications/misc/ikiwiki/default.nix:1:1':
value is an attribute set while a Boolean was expected


I try from time to time to run nixos-checkout but the error remains.

It is only me?  Do I have something corrupted on my computer?  (I  
tried to checkout the svn repository for nixos and nixpkgs from  
scratch but nothing changes).

Thanks,
M.

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