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

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

solve:

LC_ALL="en_GB.utf8"

修改/etc/environment and rebooting