Class "Symfony\Component\EventDispatcher\Event" not found

[Light5566]

Class "Symfony\Component\EventDispatcher\Event" not found while getting account->balance, unable to fix even thought reinstalled the package

[zhonglangj]

Class "Symfony\Component\EventDispatcher\Event" not found while getting account->balance, unable to fix even thought reinstalled the package

hey man, try to install the required package composer require symfony/event-dispatcher