使用simit.com PHPJasperXML时出现问题

Question

I have upgraded to version 1.1 of the SIMIT.COM PHPJasperXML class and now receive the following error message...

(The class is located here: https://github.com/SIMITGROUP/phpjasperxml)

Parse error:

syntax error, unexpected '.', expecting ',' or ';' in C:\xampp\htdocs\courierserver\wms-mfsl\class_new\version\1.1\abstractPHPJasperXML.inc.php 
on line 29

Line 29 (first line show below) If I comment out line 29 then line 31 has the same error

My environmentt is XAMPP on Windows 7

I have checked the code and it appears valid

        protected $pchartfolder= __DIR__ . '/../../pchart2';
        protected $chartobj;
        protected $fontdir = __DIR__ . "/../../tcpdf/fonts";