my error :
NOTICE: Please set the $rendererName and $rendererLibraryPath values
at the top of this script as appropriate for your directory structure
my location
$rendererName = PHPExcel_Settings::PDF_RENDERER_MPDF;
$rendererLibrary = 'mpdf';
$rendererLibraryPath = $_SERVER['DOCUMENT_ROOT'].'/simpada-offline/server/lib/PHPExcel/Writer/PDF/' . $rendererLibrary;
my name file mpdf.php on $_SERVER['DOCUMENT_ROOT'].'/simpada-offline/server/lib/PHPExcel/Writer/PDF/
$rendererLibrary = name of file??
$rendererLibraryPath = location file mpdf??
how can i fixed??