Fatal error: Uncaught Error: Class 'PHPExcel_Settings' not found in C:\xampp\htdocs\linmark\application\libraries\PHPExcel\Writer\PDF\mPDF.php:30 Stack trace: #0 {main} thrown in C:\xampp\htdocs\linmark\application\libraries\PHPExcel\Writer\PDF\mPDF.php on line 30