indicators-client software package provides Indicators client test application, you can install in your Ubuntu 17.04 (Zesty Zapus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install indicators-client
indicators-client is installed in your system.
Make ensure the indicators-client package were installed using the commands given below,
$ sudo dpkg-query -l | grep indicators-client *
You will get with indicators-client package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | X Window System software |
| Package | indicators-client |
| Version | 8.15+17.04.20161116.1-0ubuntu1 |
| Description | Indicators client test application |
| Sub Section | x11 |