$ sudo apt-get update
$ sudo apt-get install libactivesupport-ruby1.8 

libactivesupport-ruby1.8 is installed in your system.

Make ensure the libactivesupport-ruby1.8 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libactivesupport-ruby1.8 *

You will get with libactivesupport-ruby1.8 package name, version, architecture and description in a table

libactivesupport-ruby1.8 package basic information: