Missing Controller

Error: SpaceStructure3Controller could not be found.

Error: Create the class SpaceStructure3Controller below in file: app/controllers/space_structure3_controller.php

<?php
class SpaceStructure3Controller extends AppController {

	var $name = 'SpaceStructure3';
}
?>

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