Fatal error: Uncaught Error: Class 'PHPExcel_Settings' not found in C:\xampp\htdocs\BeiDou_website\z\class\Doffice\PHPExcel\Chart\Renderer\jpgraph.php:3 Stack trace: #0 {main} thrown in C:\xampp\htdocs\BeiDou_website\z\class\Doffice\PHPExcel\Chart\Renderer\jpgraph.php on line 3