Fatal error: Uncaught Error: Interface 'Symfony\Component\Security\Core\Role\RoleHierarchyInterface' not found in /home/itscm/dev.its.cm/webserivesits/vendor/symfony/security-core/Role/RoleHierarchy.php:19 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webserivesits/vendor/symfony/security-core/Role/RoleHierarchy.php on line 19