zend framework中进入后台管理时出现的错误

Fatal error: Uncaught exception 'Zend_Controller_Action_Exception' with message 'Action "brand" does not exist and was not trapped in __call()' in D:\wamp\www\wholesale\library\Zend\Controller\Action.php:485 Stack trace: #0 D:\wamp\www\wholesale\library\Zend\Controller\Action.php(515): Zend_Controller_Action->__call('brandAction', Array) #1 D:\wamp\www\wholesale\library\Zend\Controller\Dispatcher\Standard.php(295): Zend_Controller_Action->dispatch('brandAction') #2 D:\wamp\www\wholesale\library\Zend\Controller\Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Zend_Controller_Request_Http), Object(Zend_Controller_Response_Http)) #3 D:\wamp\www\wholesale\index.php(29): Zend_Controller_Front->dispatch() #4 {main} thrown in D:\wamp\www\wholesale\library\Zend\Controller\Action.php on line 485

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请高手告诉我哪里出错了~