Deprecated: Optional parameter $dataType declared before required parameter $pSheet is implicitly treated as a required parameter in C:\Program Files (x86)\EasyPHP-Devserver-17\eds-www\PORTEFEUILLE\ClassesPHPExcel\PHPExcel\Writer\Excel2007\Chart.php on line 937

Fatal error: Uncaught Error: Class "PHPExcel_Writer_Excel2007_WriterPart" not found in C:\Program Files (x86)\EasyPHP-Devserver-17\eds-www\PORTEFEUILLE\ClassesPHPExcel\PHPExcel\Writer\Excel2007\Chart.php:36 Stack trace: #0 {main} thrown in C:\Program Files (x86)\EasyPHP-Devserver-17\eds-www\PORTEFEUILLE\ClassesPHPExcel\PHPExcel\Writer\Excel2007\Chart.php on line 36