Zend FR

Bonjour, SVP quelqu'un peut m'explique et proposer une solution pour ce message d'erreur:

Exception information:

Message: No adapter found for Model_Actualites
Stack trace:

#0 C:\xampp\htdocs\projet\library\Zend\Db\Table\Abstract.php(739): Zend_Db_Table_Abstract->_setupDatabaseAdapter()
#1 C:\xampp\htdocs\projet\library\Zend\Db\Table\Abstract.php(268): Zend_Db_Table_Abstract->_setup()
#2 C:\xampp\htdocs\projet\application\controllers\ActualitesController.php(18): Zend_Db_Table_Abstract->__construct()
#3 C:\xampp\htdocs\projet\library\Zend\Controller\Action.php(513): ActualitesController->listAction()
#4 C:\xampp\htdocs\projet\library\Zend\Controller\Dispatcher\Standard.php(295): Zend_Controller_Action->dispatch('listAction')
#5 C:\xampp\htdocs\projet\library\Zend\Controller\Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http))
#6 C:\xampp\htdocs\projet\library\Zend\Application\Bootstrap\Bootstrap.php(97): Zend_Controller_Front->dispatch()
#7 C:\xampp\htdocs\projet\library\Zend\Application.php(366): Zend_Application_Bootstrap_Bootstrap->run()
#8 C:\xampp\htdocs\projet\public\index.php(26): Zend_Application->run()
#9 {main} 

Request Parameters:

array (
  'controller' => 'actualites',
  'action' => 'list',
  'module' => 'default',
)