Fatal error: Uncaught Error: Interface 'Contao\CoreBundle\Migration\MigrationInterface' not found in /home/benjamincb/demos/acdg-site/vendor/contao/core-bundle/src/Migration/AbstractMigration.php:15 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg-site/vendor/contao/core-bundle/src/Migration/AbstractMigration.php on line 15