sudo dpkg-reconfigure localeconf

perl: warning: Setting locale failed.

perl: warning: Please check that your locale settings:

        LANGUAGE = "en_GB.UTF-8",

        LC_ALL = "en_GB.UTF-8",

        LANG = "en_GB.UTF-8"

    are supported and installed on your system.

perl: warning: Falling back to the standard locale ("C").

locale: Cannot set LC_ALL to default locale: No such file or directory

/usr/bin/locale: Cannot set LC_ALL to default locale: No such file or directory