Ошибка с locale

[diefair]

Выдает такую ошибку
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
   LANGUAGE = "en_US.UTF-8",
   LC_ALL = "en_US.UTF-8",
   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").

и такую
/bin/sh: warning: setlocale: LC_ALL: cannot change locale (en_US.UTF-8)

Как это исправить?