Here's a temporary fix.

Navigate to the SGMiner folder:
cg /opt/miners/sgminer

Edit the missing file:
nano ckolivas.cl

Copy and paste this clean configuration file into nano: http://pastebin.com/Gjr3JdEB#
(Note: This configuration file may not be optimal for your system. Read the comments in the SGMiner release thread for a potentially optimized version for your specific setup: http://www.reddit.com/r/litecoinmining/comments/1va8g2/ann_sgminer_400_release/)

reboot