The message is emitted by glib: https://gitlab.gnome.org/GNOME/glib/commit/a919be3d39150328874ff647fb2c2be7af3df996
The commit log description is: "gmain: Warn when g_source_remove() fails". So why is it calling g_critical() instead of g_warning()? Obviously, it's not a critical error, if people are able to live with these annoying messages for five years with no obvious ill effects. Critical errors are often routed to /dev/console, and it's clearly inappropriate to escalate these messages that high. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1264368 Title: GLib-CRITICAL **: Source ID was not found when attempting to remove it - warning when leaving Network menu of g-c-c To manage notifications about this bug go to: https://bugs.launchpad.net/androidsdk/+bug/1264368/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs