Warning: require_once(Zend/Server/Interface.php) [function.require-once]: failed to open stream: No such file or directory in D:\dm\phpStudy\PHPTutorial\WWW\gm\ThinkPHP\Extend\Vendor\Zend\Server\Abstract.php on line 43

Fatal error: require_once() [function.require]: Failed opening required 'Zend/Server/Interface.php' (include_path='.;D:\dm\phpStudy\PHPTutorial\tools\pear\pear') in D:\dm\phpStudy\PHPTutorial\WWW\gm\ThinkPHP\Extend\Vendor\Zend\Server\Abstract.php on line 43