Warning: require_once(ABSPATHWPINC/widgets/class-wp-widget-pages.php) [function.require-once]: failed to open stream: No such file or directory in D:\wwwroot\yontan\wwwroot\blog\wp-includes\default-widgets.php on line 11

Fatal error: require_once() [function.require]: Failed opening required 'ABSPATHWPINC/widgets/class-wp-widget-pages.php' (include_path='.;C:\php5\pear') in D:\wwwroot\yontan\wwwroot\blog\wp-includes\default-widgets.php on line 11