As per Matthias' comment #24, deleting the rm /usr/bin/appstreamcli and installing the .deb packages worked for me as well.
Thank you Matthias' -- 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/1579712 Title: Refresh hangs indefinitely, appstreamcli using 100% CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/appstream/+bug/1579712/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs