Fatal error: Uncaught Error: Class "Symfony\Component\CssSelector\Exception\ParseException" not found in C:\WebServer\htdocs\bookshelf\vendor\symfony\css-selector\Exception\SyntaxErrorException.php:24 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\symfony\css-selector\Exception\SyntaxErrorException.php on line 24