Fatal error: Uncaught Error: Interface 'Doctrine\Persistence\PropertyChangedListener' not found in C:\Apache24\htdocs\fixedasset\vendor\doctrine\orm\lib\Doctrine\ORM\UnitOfWork.php:89 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\fixedasset\vendor\doctrine\orm\lib\Doctrine\ORM\UnitOfWork.php on line 89