benim doktrin modeli, Post, Application\Entities ad olan bir durumu yaşıyorum ve ben uygulamak denemek istiyorum Zend_Acl_Resource_Interface. i hatası alıyorum

Fatal error: Interface 'Application\Entities\Zend_Acl_Resource_Interface' not found in D:\Projects\Websites\php\ZendFram ework\LearningZF\library\Application\Entities\Post.php on line 8

namespace Application\Entities;
use DoctrineExtensions\NestedSet\Node;

/**
 * @Entity @Table(name="posts")
 */
class Post implements Node, Zend_Acl_Resource_Interface {

update

i çalışırsanız

class Post implements Node, \Zend_Acl_Resource_Interface {

Fatal error: Interface 'Zend_Acl_Resource_Interface' not found in D:\Projects\Websites\php\ZendFramework\LearningZF\library\Application\Entities\Post.php on line 8