Fatal error: Uncaught Error: Class "Symfony\Component\Console\Command\Command" not found in /home/tzuovhm/tzuovhm/apps/dav/lib/Command/CreateAddressBook.php:17 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps/dav/lib/Command/CreateAddressBook.php on line 17