For ubuntu 18.04, php7.2 is the default. If a different version is installed you'll likely need to rebuild php-imagick (and other modules) to get them to work with that version.
** Changed in: php-imagick (Ubuntu) Status: Confirmed => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1749814 Title: imagick requirements break php7.1 installation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php-imagick/+bug/1749814/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs