Fatal error: Uncaught Error: Interface "Eluceo\iCal\Property\ValueInterface" not found in C:\Apache24_x64\htdocs\ex-vak\vendor\eluceo\ical\src\Property\Event\RecurrenceRule.php:23 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ex-vak\vendor\eluceo\ical\src\Property\Event\RecurrenceRule.php on line 23