problem in uploading msword document

[eluser]mrcoder[/eluser]
Hi,

Iam trying to upload a msword doc file.when iam uploading a doc file iam getting the errot asArray ( [error] =>

You did not select a file to upload.
)

and my code is

Code:

$config['upload_path'] = 'uploads';
        $config['allowed_types'] ='application/msword | application/vnd.ms-word';
        // loading the upload class
        $this->load->library('upload', $config);
        if ( ! $this->upload->do_upload())
        {
            $error = array('error' => $this->upload->display_errors());
            
            print_r($error);
        }

can any one help me.