How to make forms in cakephp

[mona]

I m new to cake php i want to make form in cakephp and i make the
following things
    class User extends AppModel {

        var $name = 'User';

     var $validate = array(
         'name'=>array('rule'=>'notEmpty'),
         'email'=>array('rule'=>'email'),
         'password'=>array(
                  'Cannot be empty' => array('rule'=>'notEmpty'),
                'Must be at least 4 chars' => array('rule'=>array
('minLength', 4))
         )
       );
 }
This is my model and i saved as a user.php
and my controller is
  class UsersController extends AppController {

    var $name = 'Users';
    var $components = array('Security');

    function add() {
         if(!empty($this->data)) {
            $this->User->save($this->data);
        }
      }
 }

and then i create a view for add action
    echo $form->create();
    echo $form->inputs(array('name', 'email', 'password'));
    echo $form->end('Register');
but it is creating error can anybody tell me why it is creating a
error please correct it

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