Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Mapping\ElementMetadata" not found in C:\AppServ\www\greenhess-storage\vendor\symfony\validator\Mapping\MemberMetadata.php:30
Stack trace:
#0 {main}
thrown in C:\AppServ\www\greenhess-storage\vendor\symfony\validator\Mapping\MemberMetadata.php on line 30