$ sudo apt-get update
$ sudo apt-get install libgnomedesktop2.20-cil 

libgnomedesktop2.20-cil is installed in your system.

Make ensure the libgnomedesktop2.20-cil package were installed using the commands given below,

$ sudo dpkg-query -l | grep libgnomedesktop2.20-cil *

You will get with libgnomedesktop2.20-cil package name, version, architecture and description in a table

libgnomedesktop2.20-cil package basic information: