Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

OS: Lubuntu 13.10, clean install.

I noticed an update for libunity-scopes-json-def-desktop. To find out what that is, I ran apt-cache show libunity-scopes-json-def-desktop and saw this, in part:

[10:44 AM] ~ $ apt-cache show libunity-scopes-json-def-desktop
Package: libunity-scopes-json-def-desktop
Priority: optional
Section: gnome
Installed-Size: 52
Maintainer: Ubuntu Core Developers <>
Architecture: all
Source: libunity
Version: 7.1.2+13.10.20131010-0ubuntu2
Description-en: binding to get places into the launcher - desktop def file
 libunity is a shared library to be able to interact with the launcher
 and add places in Unity environment.
 This package contains default scopes definition for the destkop.
Task: ubuntu-desktop, ubuntu-usb, edubuntu-desktop, edubuntu-usb, xubuntu-desktop, lubuntu-desktop, ubuntustudio-desktop, ubuntu-gnome-desktop

Is the presence of this package in Lubuntu and other non-Unity flavors intentional?

share|improve this question
up vote 1 down vote accepted

It is not just libunity-scopes-json-def-desktop. There are other Unity-related packages as well. I looked at /var/log/apt/history.log and found:

gir1.2-unity-5.0                  GObject introspection data for the Unity library
libunity-protocol-private0        binding to get places into the launcher - private library
libunity-scopes-json-def-desktop  binding to get places into the launcher - desktop def file
libunity9                         binding to get places into the launcher - shared library

Looking at the output ofapt-cache showpkg libunity9, for example, shows that several common, "cross-environment" packages such as deja-dup, empathy, evolution, psensor, and thunderbird, carry libunity9 as a dependency. And libunity9 has some of the Unity packages listed above as dependencies.

In other words, having these Unity packages present in a non-Unity desktop is quite understandable.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.