Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\Event\RequestEvent' not found in C:\SistemasPHP\observatorio4\vendor\symfony\http-kernel\Event\GetResponseForExceptionEvent.php:21
Stack trace:
#0 {main}
thrown in C:\SistemasPHP\observatorio4\vendor\symfony\http-kernel\Event\GetResponseForExceptionEvent.php on line 21