Arch strange error message from locale

Question

I have a system running Arch, which seems to be OK, except I often get messages like man: can't set the locale; make sure $LC_* and $LANG are correct

When I run locale I get the following

locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_AU.UTF-8
LC_CTYPE="en_AU.UTF-8"
LC_NUMERIC="en_AU.UTF-8"
LC_TIME="en_AU.UTF-8"
LC_COLLATE="en_AU.UTF-8"
LC_MONETARY="en_AU.UTF-8"
LC_MESSAGES="en_AU.UTF-8"
LC_PAPER="en_AU.UTF-8"
LC_NAME="en_AU.UTF-8"
LC_ADDRESS="en_AU.UTF-8"
LC_TELEPHONE="en_AU.UTF-8"
LC_MEASUREMENT="en_AU.UTF-8"
LC_IDENTIFICATION="en_AU.UTF-8"
LC_ALL=

Everything looks OK, and LC_CTYPE etc are set

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locale-gen seems to have made no difference and locale -a produces the following:-

locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_COLLATE to default locale: No such file or directory
C
POSIX

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Obviously locale -a did not include my locale, even though /etc/locale.gen looked OK and locale-gen had been run. I deleted LANG and rerun, it is now OK.

Answer 1

It looks like you need to run locale-gen command to create missing directories.

https://wiki.archlinux.org/index.php/locale