$ sudo apt-get update
$ sudo apt-get install libavahi-core7-udeb 

libavahi-core7-udeb is installed in your system.

Make ensure the libavahi-core7-udeb package were installed using the commands given below,

$ sudo dpkg-query -l | grep libavahi-core7-udeb *

You will get with libavahi-core7-udeb package name, version, architecture and description in a table

libavahi-core7-udeb package basic information: