/usr/bin/gnome-control-center:6:g_assertion_message:g_assertion_message_expr:_gtk_builder_get_widget:screen_sharing_hide_cb:g_closure_invoke

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding gnome-control-center. This problem was most recently seen with package version 1:3.28.1-0ubuntu5, the problem page at https://errors.ubuntu.com/problem/6e8f205b4e6ab5e65fec15669d6f6b2f8f3a8be8 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

[Robert Ancell (robert-ancell)]

This is fixed in git master:
https://gitlab.gnome.org/GNOME/gnome-control-center/commit/eff88ab2f18d6b89395e098dadfdae7705b0fc92

[Robert Ancell (robert-ancell)]

To reproduce:
1. Open GNOME Software
2. Go to sharing settings
3. Enable sharing
4. Click on "Screen Sharing"
5. From a terminal switch to another panel:
$ gnome-control-center network

[Sebastien Bacher (seb128)]

The bug is fixed in 18.10, could be an option to SRU to bionic but the number of reports is low so it might be not worth it