$ sudo apt-get update
$ sudo apt-get install libsoup-gnome2.4-1 

libsoup-gnome2.4-1 is installed in your system.

Make ensure the libsoup-gnome2.4-1 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libsoup-gnome2.4-1 *

You will get with libsoup-gnome2.4-1 package name, version, architecture and description in a table

libsoup-gnome2.4-1 package basic information: