Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Part\AbstractPart" not found in D:\projects\php\laragon\www\blog-naver\vendor\symfony\mime\Part\AbstractMultipartPart.php:19 Stack trace: #0 {main} thrown in D:\projects\php\laragon\www\blog-naver\vendor\symfony\mime\Part\AbstractMultipartPart.php on line 19