perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = "en_US:en_GB:en", LC_ALL = (unset), LC_NUMERIC = "en_US.UTF-8", LC_CTYPE = "en_US.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C").