Hi! Was just checking your tool yesterday (fortunately the result wasn't any critical to me) and the build failed with: E: Unable to locate package task-mate-desktop full options and log can be seen here: http://cgi.build.live-systems.org/build/20140916.220239.249283828/ My desktop which is actually running MATE on Jessie doesn't know about this package either. I'm usually installing MATE using mate-desktop-environment-extra package. Cheers, Eremiell