Nix package manager: perl warning: Setting locale failed

localenixnixosopensuseperl

Whenever I run a command for the nix package manager (e.g. nix-channel –update) I get the following warning:

perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = "",
        LC_ALL = "en_US.UTF-8",
        LC_CTYPE = "en_US.UTF-8",
        LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").

I suspect it's somehow related to nix since other perl scripts don't show this behaviour (I tried perl -e exit and something using WWW::Curl).

Changing the locale settings does reflect in the output of the warning, but the warning is still shown with every configuration I could think of.

OS is openSUSE.

What can I do?

Best Answer

Apparently this is a problem in nix. There is an issue on GitHub with a proposed workaround by setting the LOCALE_ARCHIVE variable.

If you already have nix installed just do:

nix-env -iA nixpkgs.glibcLocales
And in your bash profile:

export LOCALE_ARCHIVE="$(nix-env --installed --no-name --out-path --query glibc-locales)/lib/locale/locale-archive"

(all as one line).

Related Solutions

Debian Locale – Fix ‘Locale Not Found/Setting Locale Failed’ Error

It seems that no locale is generated. Have you selected pl_PL.UTF-8 properly in dpkg-reconfigure locales by pressing space in the corresponding line?

If yes, the line

pl_PL.UTF-8 UTF-8

in /etc/locale.gen is not commented (= does not start with #). If you need to fix this, you need also to run locale-gen to generate the locales. Its output should be:

Generating locales (this might take a while)...
   pl_PL.UTF-8... done
Generation complete.

If it does not output the locales you want to generate, there seems to be something wrong with your system. One reason could be that you have localepurge installed. If there are no files in /usr/share/locale/pl/LC_MESSAGES or /usr/share/locale/pl_PL/LC_MESSAGES this is the case or your system is broken.

Debian – Problem with locale: “Setting locale failed.”

Debian saves network bandwidth by shipping locale definitions in a form that isn't directly usable, where information that is shared between locales (e.g. en_US and en_CA are very similar) is stored in a single file. Usable locale definitions must be generated on each machine. To save CPU time and disk space, only locales requested by the system administrator are generated.

Run the following command as root to configure the set of locales to generate:

dpkg-reconfigure locales

Alternatively, edit the file /etc/locale.gen and comment out the lines corresponding to the locales you want (lines beginning with # are comment lines). For example, if you want the en_GB.UTF-8 locale, you need to have a line containing

en_GB.UTF-8 UTF-8

Once you've edited /etc/locale.gen, run locale-gen to regenerate the locale definitions.

The value UTF-8 that you've set for LC_CTYPE is invalid. You need to use a valid locale name, e.g. LC_CTYPE=en_GB.UTF-8. You can leave LC_CTYPE unset: it'll default to the value of LANG. Though I rather recommend to leave LANG unset and set LC_CTYPE=en_GB.UTF-8 and LC_TIME=en_GB.UTF-8 (LC_MESSAGES effectively defaults to English, if you were using another language then you should set it as well).

Best Answer

Related Solutions

Debian Locale – Fix ‘Locale Not Found/Setting Locale Failed’ Error

Debian – Problem with locale: “Setting locale failed.”

Related Question