Fatal error: Uncaught Error: Class 'Phpcmf\Model' not found in D:\DDZL\PHP\Apache24\htdocs\dayrui\Fcms\Model\Attachment.php:12 Stack trace: #0 {main} thrown in D:\DDZL\PHP\Apache24\htdocs\dayrui\Fcms\Model\Attachment.php on line 12