[Resolvido] Erro no Navigation

Galera estou seguindo todos os passos do tutorial da criação do navigation

Zend_Navigation

So que quando incio minha aplicação ele apresenta o seguinte

Fatal error: Uncaught exception 'Zend_Navigation_Exception' with message 'Invalid argument: Unable to determine class to instantiate' in C:\xampp\ZendFramework-1.12.0\library\Zend\Navigation\Page.php:274 Stack trace: #0 C:\xampp\ZendFramework-1.12.0\library\Zend\Navigation\Container.php(117): Zend_Navigation_Page::factory(Array) #1 C:\xampp\ZendFramework-1.12.0\library\Zend\Navigation\Container.php(172): Zend_Navigation_Container->addPage(Array) #2 C:\xampp\ZendFramework-1.12.0\library\Zend\Navigation.php(46): Zend_Navigation_Container->addPages(Object(Zend_Config_Ini)) #3 C:\xampp\htdocs\seatech\application\Bootstrap.php(22): Zend_Navigation->__construct(Object(Zend_Config_Ini)) #4 C:\xampp\ZendFramework-1.12.0\library\Zend\Application\Bootstrap\BootstrapAbstract.php(669): Bootstrap->_initNavigation() #5 C:\xampp\ZendFramework-1.12.0\library\Zend\Application\Bootstrap\BootstrapAbstract.php(622): Zend_Application_Bootstrap_BootstrapAbstract->_executeResource('navigation') #6 C:\xampp\ZendFramework-1.12.0\library\Zend\Appl in C:\xampp\ZendFramework-1.12.0\library\Zend\Navigation\Page.php on line 274