BirkhoffLee@tg says to YSITDroot@docker:~# locale-gen UTF-8 root@docker:~# sudo update-locale 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").at Sun, Jun 26, 2016 3:44 PM