Once you have installed the Ansible package in your Ubuntu machine, you may get an error when you check the Ansible version using the command below,

ansible --version

ERROR: Ansible requires the locale encoding to be UTF-8; Detected ISO8859-1.

Open the configuration file/etc/default/locale and add the lines below if not added previously,

vim  /etc/default/locale

LANG=en_US.UTF-8
LC_CTYPE=en_US.UTF-8

And execute the command below and configure locale encoding to be UTF-8

sudo update-locale LANG=en_US.UTF-8 LC_CTYPE=en_US.UTF-8

or use the command below to re-configure the locales and see the screenshot below.

sudo locale-gen en_US en_US.UTF-8

sudo dpkg-reconfigure locales

Finally reboot or restart your machine.