aptdaemon-data software package provides data files for clients, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install aptdaemon-data
aptdaemon-data is installed in your system.
Make ensure the aptdaemon-data package were installed using the commands given below,
$ sudo dpkg-query -l | grep aptdaemon-data *
You will get with aptdaemon-data package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | aptdaemon-data |
| Version | 1.1.1+bzr982-0ubuntu14 |
| Description | data files for clients |
| Sub Section | admin |