我的语言环境有问题，我找不到任何有效的解决方案！
每个教程都与此类似：Perl 警告 Setting locale failed in Debian。
这是语言环境的问题：
pi @ server [~]:
$ > sudo deluser --remove-home cm22
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_CTYPE = "UTF-8",
LANG = "en_GB.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
Looking for files to backup/remove ...
Removing user `cm22' ...
Warning: group `cm22' has no more members.
Done. …