Fatal error: Uncaught Error: Interface "Symfony\Component\CssSelector\Parser\Handler\HandlerInterface" not found in C:\svn\conexerp\vendor\symfony\css-selector\Parser\Handler\NumberHandler.php:29 Stack trace: #0 {main} thrown in C:\svn\conexerp\vendor\symfony\css-selector\Parser\Handler\NumberHandler.php on line 29