[fw-general] Invalid controller specified

[吴 洪声]

I'm created ErrorController.php, but it doesn't help.
some of my index.php:

$frontController = Zend_Controller_Front::getInstance();
$frontController->throwExceptions(true);
// $frontController->returnResponse(true);
$frontController->setParam('noViewRenderer', true);
$frontController->setControllerDirectory('../app/controllers');
$frontController->registerPlugin(new  
Zend_Controller_Plugin_ErrorHandler());

try {
        $frontController->dispatch();
} catch (Exception $e) {
        echo $e->getMessage();
        $log_message = "[".$e->getMessage()."]";
        $logger->log($log_message, Zend_Log::EMERG);
}