Fatal error: Uncaught Error: Class 'Doctrine\Common\Lexer\AbstractLexer' not found in E:\xampp\htdocs\www\yunwei\qr2500\vendor\egulias\email-validator\src\EmailLexer.php:11 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr2500\vendor\egulias\email-validator\src\EmailLexer.php on line 11