Missing Method in NodeController

You are seeing this error because the action contact is not defined in controller NodeController

Notice: this error is being rendered by the app/views/errors/missing_action.thtml view file, a user-customizable error page for handling invalid action dispatches.

Fatal: Create Method:

<?php
    class NodeController extends AppController
    {
        function contact()
        {

        }
    }
?>

in file : app/controllers/node_controller.php

Error: Unable to execute action contact in NodeController