Notice (8): Undefined index:  controller [CORE/app/views/layouts/default.thtml, line 51]
Notice (8): Undefined index:  controller [CORE/app/views/layouts/default.thtml, line 55]
Notice (8): Undefined index:  controller [CORE/app/views/layouts/default.thtml, line 73]
Notice (8): Undefined index:  action [CORE/app/views/layouts/default.thtml, line 95]
Notice (8): Undefined index:  controller [CORE/app/views/elements/page_title.thtml, line 168]
Notice (8): Undefined index:  action [CORE/app/views/elements/page_title.thtml, line 168]

Missing Method in ArticlesController

You are seeing this error because the action sitemap is not defined in controller ArticlesController

If you want to customize this error message, create app/views/errors/missing_action.ctp.

Fatal : Confirm you have created the ArticlesController::sitemap in file : app/controllers/articles_controller.php.

<?php
class ArticlesController extends AppController {
   function sitemap() {
   }

}
?>

Notice (8): Undefined index:  controller [CORE/app/views/layouts/default.thtml, line 130]
Notice (8): Undefined index:  action [CORE/app/views/layouts/default.thtml, line 138]
Notice (8): Undefined index:  controller [CORE/app/views/layouts/default.thtml, line 169]