I also tried adding the deb-src repositories (for my sources.list which has bionic/bionic-updates/bionic-security with main/universe/multiverse), then attempted to use apport-retrace [1] with a sandbox to download symbols automatically, but log file didn't have sufficient fields:
> ubuntu@ubuntu:~$ apport-retrace -S ~/temp_apport/ > /var/crash/_usr_bin_nm-connection-editor.999.crash > ERROR: report file does not contain one of the required fields: Package [1] http://manpages.ubuntu.com/manpages/bionic/man1/apport- retrace.1.html -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager-applet in Ubuntu. https://bugs.launchpad.net/bugs/1806269 Title: nm-connection-editor crashes when trying to modify connection Status in network-manager-applet package in Ubuntu: Confirmed Bug description: Thread 1 "nm-connection-e" received signal SIGSEGV, Segmentation fault. 0x00007ffff7ba6b53 in modules_initialized (object=<optimised out>, res=0x555556048a40, user_data=<optimised out>) at src/libnma/nma-cert-chooser-button.c:98 98 src/libnma/nma-cert-chooser-button.c: No such file or directory. This occurs when the package "gnome-keyring" is not installed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1806269/+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