( ! ) Fatal error: Interface 'Symfony\Component\EventDispatcher\EventDispatcherInterface' not found in C:\wamp64\www\pws_product_mdb_macola\00sandbox\sendgrid-php\vendor\symfony\event-dispatcher\EventDispatcher.php on line 30
Call Stack
#TimeMemoryFunctionLocation
10.0000383488{main}( )...\EventDispatcher.php:0