Fatal error: Uncaught Error: Class 'Concrete\Core\Page\Command\AbstractRebuildIndexCommand' not found in /home/gmcguire/public_html/concrete5/concrete/src/User/Command/RebuildUserIndexCommand.php:10 Stack trace: #0 {main} thrown in /home/gmcguire/public_html/concrete5/concrete/src/User/Command/RebuildUserIndexCommand.php on line 10