Response::download error because of header in laravel

Controller:

public function download(){

 $headers = array('Content-Type' => 'text/csv');
 return Response::download('download.csv', 'download.csv', $headers)->setContentDisposition('inline');a

}

Filter:

 $response->header('Cache-Control', 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0');

Error:

 [2016-01-19 15:34:29] local.ERROR: exception 'Symfony\Component\Debug\Exception\FatalErrorException' with message 'Call to undefined method Symfony\Component\HttpFoundation\BinaryFileResponse::header()' in C:\xampp\htdocs\development\app\filters.php:60
  Stack trace:
  #0 [internal function]: Illuminate\Exception\Handler->handleShutdown()
  #1 {main} [] []

I don't know how to solve this kind of problem. I already tried this but still not working.

via Chebli Mohamed