Package: x2goserver Version: 4.0.1.19-010640ubuntu16.04.1 With the most recent updates to Ubuntu 16.04 (moving kernel to 4.4.0-18-generic Apr 6) x2goserver suddenly fails to start. The relevant error message in .xsession-x2go-errors is: 13 XSession-x2go: X session started for ddd at Fri Apr 8 17:52:25 EDT 2016 14 localuser:ddd being added to access control list 15 /etc/x2go/Xsession: 3: [: x: unexpected operator 16 mate-session[3684]: GLib-GIO-CRITICAL: g_settings_schema_source_lookup: assertion 'source != NULL' failed 17 mate-session[3684]: GLib-GIO-ERROR: No GSettings schemas are installed on the system 18 aborting... I have Ubuntu 16.04 installed on a physical machine and also as a KVM virtual machine. In each case after the most recent updates x2goserver fails to start with the same message as above.