32 Chart read write HTML

03:43:52 Load Test from Xlsx file 36writeLineChart1.xlsx
03:43:52 Iterate worksheets looking at the charts
03:43:52 Worksheet: Data
03:43:52 chart1 - "Sales"
03:43:52
03:43:52 lineChart

Fatal error: Class 'JpGraph\JpGraph' not found in /home/http-content/www.auvix.ru/www/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Chart/Renderer/JpGraph.php on line 53