Fatal error: Uncaught Error: Class "TCPDF2DBarcode" not found in C:\wamp64\www\React_mob\8.5\Report\barcodes\example_2d_qrcode_png.php:46 Stack trace: #0 {main} thrown in C:\wamp64\www\React_mob\8.5\Report\barcodes\example_2d_qrcode_png.php on line 46