$ sudo apt-get update
$ sudo apt-get install gnome-flashback-common 

gnome-flashback-common is installed in your system.

Make ensure the gnome-flashback-common package were installed using the commands given below,

$ sudo dpkg-query -l | grep gnome-flashback-common *

You will get with gnome-flashback-common package name, version, architecture and description in a table

gnome-flashback-common package basic information: