Rapyd Components error

[eluser]Unknown[/eluser]
Hi.
I tried to use rapyd library but I got this error "Result file doesn't exist: CI_DB_mysql".
I put rapyd folder in the same level of system folder and also the Rapyd.php file in the application libraries. In my controller constructor I have this code:

Code:

try{
   $this->load->library('rapyd');
}catch(Exception $e){
   $data['message'] = $e->getMessage();
   $this->load->view('error',$data);
}

Could somebody help me? thx

[eluser]Unknown[/eluser]
so.. what do you use for a datagrid in CI?