Warning: require(ABSPATHWPINC/Text/Diff.php) [function.require]: failed to open stream: No such file or directory in D:\wwwroot\wuchunhua\wordpress\wp-includes\wp-diff.php on line 13

Fatal error: require() [function.require]: Failed opening required 'ABSPATHWPINC/Text/Diff.php' (include_path='.;C:\php5\pear') in D:\wwwroot\wuchunhua\wordpress\wp-includes\wp-diff.php on line 13