libcinnamon-menu-3-0 software package provides Cinnamon implementation of the freedesktop menu specification, 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 libcinnamon-menu-3-0
libcinnamon-menu-3-0 is installed in your system.
Make ensure the libcinnamon-menu-3-0 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcinnamon-menu-3-0 *
You will get with libcinnamon-menu-3-0 package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | X Window System software |
| Package | libcinnamon-menu-3-0 |
| Version | 2.8.0-1 |
| Description | Cinnamon implementation of the freedesktop menu specification |
| Sub Section | X349 |