OK, so /var/cache/app-info/ exists before and after software-updater runs. But it does not exist in between while it prepáres the upgrade.
** Summary changed: - Crash on Upgrade to 18.10 from 18.04 Network Not Available + Crash on Upgrade preparation from 18.04 to 18.10 in APT::Update::Post-Invoke-Success -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to appstream in Ubuntu. https://bugs.launchpad.net/bugs/1794213 Title: Crash on Upgrade preparation from 18.04 to 18.10 in APT::Update::Post- Invoke-Success To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/appstream/+bug/1794213/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs