Fatal error: Uncaught Error: Interface "Symfony\Component\Mime\MimeTypeGuesserInterface" not found in C:\WebServer\htdocs\bookshelf\vendor\symfony\mime\MimeTypesInterface.php:17 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\symfony\mime\MimeTypesInterface.php on line 17