libavahi-common3-udeb software package provides Avahi common library (debian-installer), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libavahi-common3-udeb
libavahi-common3-udeb is installed in your system.
Make ensure the libavahi-common3-udeb package were installed using the commands given below,
$ sudo dpkg-query -l | grep libavahi-common3-udeb *
You will get with libavahi-common3-udeb package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | debian-installer udeb packages |
| Package | libavahi-common3-udeb |
| Version | 0.6.31-4ubuntu1 |
| Description | Avahi common library (debian-installer) |
| Sub Section | Debian-installer |