Fatal error: Uncaught Error: Class 'Zend_Validate_Abstract' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Zend\Validate\File\Upload.php:35 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Zend\Validate\File\Upload.php on line 35