Zend FR

j'ai bien fait l'integration mais quand j'instancie la classe model :

firstrole = new Models_TRole();
               
           
                $firstrole->role = 'test insertion role';
               
                $firstrole->save();


il me donne cette erreur :



Fatal error:  Class 'Models_TRole' not found in D:\\wamp\\www\\coliseo_v1.1\\application\\controllers\\MembreController.php on line 20
[Fri Apr 06 16:58:58 2012] [error] [client 127.0.0.1] PHP Stack trace:
[Fri Apr 06 16:58:58 2012] [error] [client 127.0.0.1] PHP   1. {main}() D:\\wamp\\www\\coliseo_v1.1\\public\\index.php:0
[Fri Apr 06 16:58:58 2012] [error] [client 127.0.0.1] PHP   2. Zend_Application->run() D:\\wamp\\www\\coliseo_v1.1\\public\\index.php:26
[Fri Apr 06 16:58:58 2012] [error] [client 127.0.0.1] PHP   3. Zend_Application_Bootstrap_Bootstrap->run() D:\\wamp\\bin\\ZendFramework-1.11.11\\library\\Zend\\Application.php:366
[Fri Apr 06 16:58:58 2012] [error] [client 127.0.0.1] PHP   4. Zend_Controller_Front->dispatch() D:\\wamp\\bin\\ZendFramework-1.11.11\\library\\Zend\\Application\\Bootstrap\\Bootstrap.php:97
[Fri Apr 06 16:58:58 2012] [error] [client 127.0.0.1] PHP   5. Zend_Controller_Dispatcher_Standard->dispatch() D:\\wamp\\bin\\ZendFramework-1.11.11\\library\\Zend\\Controller\\Front.php:954
[Fri Apr 06 16:58:58 2012] [error] [client 127.0.0.1] PHP   6. Zend_Controller_Action->dispatch() D:\\wamp\\bin\\ZendFramework-1.11.11\\library\\Zend\\Controller\\Dispatcher\\Standard.php:295
[Fri Apr 06 16:58:58 2012] [error] [client 127.0.0.1] PHP   7. MembreController->indexAction() D:\\wamp\\bin\\ZendFramework-1.11.11\\library\\Zend\\Controller\\Action.php:516


alors que j'arrive a generé mes classe models a partir de ma BD.

merci