Thread:Project:Support desk/problem to install PdfExport on Win7 64bit

hi !

I want to install PdfExport but I get following message: Fatal error: Call to undefined function wfLoadExtensionMessages in C:\mediawiki\extensions\PdfExport\PdfExport.php on line 83

first I download the current version an put into extension-directory. next I added following into localsettings.php

''require_once("$IP/extensions/PdfExport/PdfExport.php"); $wgPdfExportDomPdfConfigFile = $IP. '/extensions/PdfExport/dompdf/dompdf_config.inc.php'; // Path to the DomPdf config file''
 * 1) DomPDF

what is my mistake ? regards Jan