perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_CTYPE = "en_IE.UTF-8",
LANG = "en_US.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_US.UTF-8").
The fix is very simple.
me@server # locale-gen en_IE.UTF-8
Generating locales (this might take a while)...
en_US.UTF-8... done
Generation complete.
me@server # dpkg-reconfigure locales
Select the locale and save
Generating locales (this might take a while)...
en_IE.UTF-8... done
en_US.UTF-8... done
Generation complete.
me@server #
And the issue should be resolved.