Warning: require_once(jpgraph/jpgraph.php): failed to open stream: No such file or directory in E:\xampp\htdocs\www\code\jpgraph\src\Examples\odoex00.php on line 14

Fatal error: require_once(): Failed opening required 'jpgraph/jpgraph.php' (include_path='.;C:\php\pear') in E:\xampp\htdocs\www\code\jpgraph\src\Examples\odoex00.php on line 14