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Fix for 'SETTING LOCALE FAILED'

10 May 2016

I was recently experience some annoying thing. If you choose to install dokku on DigitalOcean you will probably get something like so:

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

It catching eye and drives me nuts. Following instruction can save you some time if you have the same.

You just need update your locale file

$ sudo cat > /etc/default/locale <<'EOT'
LANGUAGE=en_US.UTF-8
LC_ALL=en_US.UTF-8
LANG=en_US.UTF-8
LC_TYPE=en_US.UTF-8
EOT

and reconfigure it

$ sudo locale-gen en_US.UTF-8
$ sudo dpkg-reconfigure locales

As result you gonna see something like this

dpkg-reconfigure locales
Generating locales...
  en_AG.UTF-8... done
  en_AU.UTF-8... done
  en_BW.UTF-8... done
  en_CA.UTF-8... done
  en_DK.UTF-8... done
  en_GB.UTF-8... done
  ....

Don’t forget to reconnect, this changes will have effect with new session.

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