Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Chart\Properties' not found in D:\php\WWW\ccf\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Chart\TrendLine.php:5 Stack trace: #0 {main} thrown in D:\php\WWW\ccf\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Chart\TrendLine.php on line 5