Fatal error: Uncaught Error: Interface 'Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface' not found in /home/kingelearn/public_html/vendor/symfony/event-dispatcher/DependencyInjection/AddEventAliasesPass.php:22
Stack trace:
#0 {main}
thrown in /home/kingelearn/public_html/vendor/symfony/event-dispatcher/DependencyInjection/AddEventAliasesPass.php on line 22