The original package noted was a mistake. The nearest I can guess at for this problem is as above. I couldn't find anything that was obvious for a problem Gtk+3.0 development
** Package changed: ubuntu => libcanberra (Ubuntu) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libcanberra in Ubuntu. https://bugs.launchpad.net/bugs/1816032 Title: gtk_widget_destroy reports error Status in libcanberra package in Ubuntu: Incomplete Bug description: I have recently installed Ubuntu 18.04 on a new computer and have a Gtk+3.0 program that reports an error:- Gtk-CRITICAL gtk_widget_is_drawable: assertion 'GTK_IS_WIDGET (widget)' failed The same program runs without error on another computer with 16.04. The problem occurs when a ComboBoxText widget in a container (grid) is destroyed using gtk_widget_destroy. Other widgets may be affected but the problem does not occur for GtkScale widgets. The widget does actually get destroyed, but the message is produced in the process. I have also found that using gtk_container_remove avoids the error, but the docs indicate that this is inefficient and not preferred. I have attached a test program to reproduce the error. It also includes a few other things that I tried to see if they made any difference but to no avail. 'Destroy cbox' is the essential test to reproduce. System details: Description: Ubuntu 18.04.1 LTS Release: 18.04 libwxgtk3.0-dev: Installed: (none) Candidate: 3.0.4+dfsg-3 Version table: 3.0.4+dfsg-3 500 500 http://au.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libcanberra/+bug/1816032/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
