KDE longer able to handle rars / rar files

Quick one: If you are using KDE (probably on Fedora) in the last several months, and suddenly Ark has stopped being able to open/extract Rar files and gives you the message:

Failed to locate program lsar on disk

This solution may work for you. You need to install the package 'unar', and no that is not a typo. It stands for Unified Archive extractor or something. It's basically a back-end or go-between for Ark to handle multiple file types, such as rar.

Open up the konsole terminal, and type this:

sudo yum install unar

I did not have to even restart KDE, but you may need to restart KDE or reboot before it takes effect.