[Nix-dev] Cannot upgrade old NixOS

[Vladimír Čunát]

On 08/04/2013 02:49 PM, Daniel Hlynskyi wrote:
> I have trouble to do upgrade NixOS. What is the easiest way to solve
> this problem? Do I need to reinstall NixOS from scratch?

Hi. The problem is that since some time nix supports dashes in attribute 
names. Your version evidently didn't support it yet.

The feature isn't used too much yet, so I suggest to comment out the 
offending lines in <nixpkgs>/pkgs/top-level/all-packages.nix (until you 
switch to upgraded version).


Vlada


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