Here is how to solve the unsupported locale setting error on Ubuntu.
Example error in Perl:
perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LC_CTYPE = "it_IT.UTF-8", LANG = "en_US.UTF-8" are supported and installed on your system.
Example error in Python:
locale.Error: unsupported locale setting
echo "LANG=en_US.utf-8" >> /etc/environment echo "LC_ALL=en_US.utf-8" >> /etc/environment