Warning: require_once(Text/Diff/Renderer.php) [function.require-once]: failed to open stream: No such file or directory in /var/www/yii-1.1.9.r3527/framework/gii/components/Pear/Text/Diff/Renderer/context.php on line 18

Fatal error: require_once() [function.require]: Failed opening required 'Text/Diff/Renderer.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/yii-1.1.9.r3527/framework/gii/components/Pear/Text/Diff/Renderer/context.php on line 18