Fatal error: Uncaught Error: Class 'Doctrine\Common\Lexer\AbstractLexer' not found in D:\workspaces\liZiPingBack\vendor\doctrine\orm\lib\Doctrine\ORM\Query\Lexer.php:24 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\doctrine\orm\lib\Doctrine\ORM\Query\Lexer.php on line 24