Missing Method in HowToPrepareController

You are seeing this error because the action function.fileputcontents is not defined in controller HowToPrepareController

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 HowToPrepareController extends AppController
    {
        function function.fileputcontents()
        {

        }
    }
?>

in file : app/controllers/how_to_prepare_controller.php

Error: Unable to execute action function.fileputcontents in HowToPrepareController