$ sudo apt-get update
$ sudo apt-get install libnih-dbus1 

libnih-dbus1 is installed in your system.

Make ensure the libnih-dbus1 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libnih-dbus1 *

You will get with libnih-dbus1 package name, version, architecture and description in a table

libnih-dbus1 package basic information: