Datatables requested unknown parameter '0' for row 0 - codeigniter

Question

I've got this problem when i try to get data from clients table in the database
DataTables warning: table id=example - Requested unknown parameter '0' for row 0. For more information about this error, please see http://datatables.net/tn/4
This is my Controller in Codeigniter
class Clients extends CI_Controller {
function header()
{
$data['hms'] = $this->config->item('page_title');
$this->load->view('header3',$data);
}
public function index()
{
//$this->datatables->select('*');
//$this->datatables->from('bookitguests');
//$data['clients'] = $this->datatables->generate();
$data = "";
$this->header();
$this->load->view('all_guests',$data);
}
public function TableClients()
{
$this->datatables->select('name, surname, email')->from('bookitguests');
echo $this->datatables->generate();
}
}
This is my view in Codeigniter (ps, im not adding the header file, its too long)
<!-- DataTables CSS -->
<link rel="stylesheet" type="text/css" href="//cdn.datatables.net/1.10.1/css/jquery.dataTables.css">
<!-- jQuery -->
<script type="text/javascript" charset="utf8" src="//code.jquery.com/jquery-1.10.2.min.js"></script>
<!-- DataTables -->
<script type="text/javascript" charset="utf8" src="//cdn.datatables.net/1.10.1/js/jquery.dataTables.js"></script>
<script type="text/javascript" language="javascript" charset="utf-8">
$(document).ready(function() {
$('#example').DataTable( {
"bProcessing": false,
"bServerSide": false,
"sAjaxSource": "<?php base_url(); ?>clients/TableClients",
"sServerMethod": "POST"
} );
} );
</script>
<div id="container">
<h1>All Clients</h1>
<div id="body">
<table id="example" class="display">
<thead>
<tr>
<th>Name</th>
<th>Surname</th>
<th>Email</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</div>
<p class="footer">Page rendered in <strong>{elapsed_time}</strong> seconds</p>
</div>
</body>
</html>

Answer 1

You need to specify the columns explicitly when using an array of objects instead of a two dimensional array.
"columns": [
{ "data": "id" },
{ "data": "name" }
]
You can find more info here