Fatal error: Uncaught Error: Class 'Doctrine\Migrations\Configuration\AbstractFileConfiguration' not found in /home/geofieldwa/www/concrete/vendor/doctrine/migrations/lib/Doctrine/Migrations/Configuration/JsonConfiguration.php:21 Stack trace: #0 {main} thrown in /home/geofieldwa/www/concrete/vendor/doctrine/migrations/lib/Doctrine/Migrations/Configuration/JsonConfiguration.php on line 21