Fatal error: Uncaught Error: Interface 'Psr\EventDispatcher\EventDispatcherInterface' not found in G:\projects\beta.api.edutalk.edu.vn\vendor\symfony\event-dispatcher-contracts\EventDispatcherInterface.php:19 Stack trace: #0 {main} thrown in G:\projects\beta.api.edutalk.edu.vn\vendor\symfony\event-dispatcher-contracts\EventDispatcherInterface.php on line 19