Problem with locale in ubuntu 10.10

[Tom H]

On Sun, Apr 3, 2011 at 5:57 PM, Christof Buechi
<christof.buechi at gmail.com> wrote:
>
> I've got a big problem with language settings. I google a lot, but cannot
> find the perfect solution. I know there are a lot of results of this topic..
> I tried something with "locale -a", "dpkg-reconfigure locale" and also with
> "export LC_ALL="de_CH.utf8"".
>
> At a apt-get install command: (console)
> locale: Cannot set LC_CTYPE to default locale: No such file or directory
> locale: Kann LC_ALL nicht auf die Standard-Lokale einstellen: Datei oder
> Verzeichnis nicht gefunden
> perl: warning: Setting locale failed.
> perl: warning: Please check that your locale settings:
> LANGUAGE = "de_DE:en",
> LC_ALL = (unset),
> LC_MESSAGES = "de_DE.UTF-8",
> LANG = "de_DE"
>     are supported and installed on your system.
> perl: warning: Falling back to the standard locale ("C").
> /usr/bin/mandb: can't set the locale; make sure $LC_* and $LANG are correct
> --------------------------------------------------------
> locale -a (console)
> C
> de_AT.utf8
> de_BE.utf8
> de_CH.utf8
> de_DE.utf8
> ...
> -----------------------------------------------------------
> locale (console)
> LANG=de_DE

Isn't "de_DE" output when you run "locale -a"?