Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Constraints\NotBlank" not found in D:\htdocs\SuiteCRM\vendor\vich\uploader-bundle\src\Validator\Constraints\FileRequired.php:12 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\vendor\vich\uploader-bundle\src\Validator\Constraints\FileRequired.php on line 12