Warning: main(./admin/core/debug.class.php) [function.main]: failed to open stream: No such file or directory in E:\mainweb\newspaper\wwwroot\index.php on line 8

Fatal error: main() [function.require]: Failed opening required './admin/core/debug.class.php' (include_path='.;C:\php5\pear') in E:\mainweb\newspaper\wwwroot\index.php on line 8