Missing Controller

Error: 51jsimdController could not be found.

Error: Create the class 51jsimdController below in file: app/controllers/51jsimd_controller.php

<?php
class 51jsimdController extends AppController {

	var $name = '51jsimd';
}
?>

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