Notice (8): Undefined index: Categoriaspresidente [APP/Controller/PresidentesController.php, line 84]
Code Context

        $cat = $this->Presidente->Categoriaspresidente->findBySlug($categoriaslug);
        $categoriaslugid = $cat['Categoriaspresidente']['id']; 
$categoriaslug = null
$cat = array()
PresidentesController::categorias() - APP/Controller/PresidentesController.php, line 84
ReflectionMethod::invokeArgs() - [internal], line ??
Controller::invokeAction() - CORE/Cake/Controller/Controller.php, line 490
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 193
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
[main] - APP/webroot/index.php, line 118