Fatal error: Uncaught Error: Class "Doctrine\Migrations\Tools\Console\Command\DiffCommand" not found in /var/www/html/vendor/doctrine/doctrine-migrations-bundle/Command/MigrationsDiffDoctrineCommand.php:20 Stack trace: #0 {main} thrown in /var/www/html/vendor/doctrine/doctrine-migrations-bundle/Command/MigrationsDiffDoctrineCommand.php on line 20