1.3 to 2.0 migration error (Notice: Undefined index: controller in Dispatcher.php)

Question

I am doing migration of cakephp 1.3 to 2.0 . i follow the cakephp migration guide but after the upgrade i get following error.

Notice: Undefined index: controller in C:\xampp\htdocs\pro\lib\Cake\Routing\Dispatcher.php


( ! ) Fatal error: Uncaught exception 'MissingControllerException' with message 'Controller class Controller could not be found.' in C:\xampp\htdocs\pro\lib\Cake\Routing\Dispatcher.php on line 83
( ! ) MissingControllerException: Controller class Controller could not be found. in C:\xampp\htdocs\pro\lib\Cake\Routing\Dispatcher.php on line 83

Can any one guide me what i have done wrong if some one already pass through same situation? Any help will be appreaciated.

Answer 1

Check the source

The error message comes from the dispatch function:

public function dispatch(CakeRequest $request, CakeResponse $response, $additionalParams = array()) {
    if ($this->asset($request->url, $response) || $this->cached($request->here)) {
        return;
    }

    $request = $this->parseParams($request, $additionalParams);
    Router::setRequestInfo($request);
    $controller = $this->_getController($request, $response);

    if (!($controller instanceof Controller)) {
        throw new MissingControllerException(array( # line 83
            'class' => Inflector::camelize($request->params['controller']) . 'Controller',
            'plugin' => empty($request->params['plugin']) ? null : Inflector::camelize($request->params['plugin'])
        ));
    }

    return $this->_invoke($controller, $request, $response);
}

Which means: No route matched the request.

A common cause for that is to miss loading the default routes which is responsible for the catchall routes which in 1.3 are automatic.