I can't open "Software & Updates" tool

Project:Trisquel
Version:8.0
Component:Programs
Category:bug report
Priority:normal
Assigned:Unassigned
Status:active
Description

Trisquel 8 for amd64

Wed, 02/08/2017 - 00:59

Command add-apt-repository is missing as well.
Both issues must be related to the missing package software-properties which is not available in the repos.

Sun, 04/30/2017 - 23:08

It is already fixed in new version.