Fatal error: Uncaught Error: Interface "Symfony\Contracts\Translation\TranslatableInterface" not found in C:\www\Apache24\htdocs\agenda-dif\vendor\symfony\translation\TranslatableMessage.php:20 Stack trace: #0 {main} thrown in C:\www\Apache24\htdocs\agenda-dif\vendor\symfony\translation\TranslatableMessage.php on line 20