How to do CSRF protection in cakephp

Hi,

         I am new to cakephp and now I am working on a new project with cakephp by studying. My current doing task is to do CSRF protection for overall project.I have read official cakephp 2 cookbook and I did as explained in that book. But, now I am facing 

The request has been black-holed

Error: The requested address '/admin/accounts/add' was not found on this server. 

every time the new user add form is submitted.

My code is :

//////////////////////////////////////////////////////////////////////////////////////////////////

public $components = array(

'Security' => array(

'csrfExpires' => '+1 hour'

),

'Search.Prg' => array(

'commonProcess' => array(

'paramType' => 'named',

'filterEmpty' => true

))

);

///////////////////////////////////////////////////////////////////

public function beforeFilter() {

parent::beforeFilter();

$this->layout = 'admin';

$this->Security->blackHoleCallback = '_blackHole';

}

////////////////////////////////////////////////////////////////////

public function _blackHole($error) {

die($error);

}

/////////////////////////////////////////////////////////////////////

By doing so, 'auth' error has appeared.

How should I do?

Please help me.I have googled but it was just the waste of time.I have no way to do.

Please help me.

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