Fatal error: Uncaught Error: Class "Doctrine\Common\Lexer\AbstractLexer" not found in I:\www\frameworks\Laravel\vendor\doctrine\lexer\tests\Doctrine\Common\Lexer\ConcreteLexer.php:7 Stack trace: #0 {main} thrown in I:\www\frameworks\Laravel\vendor\doctrine\lexer\tests\Doctrine\Common\Lexer\ConcreteLexer.php on line 7