Extra argument in callのエラー対策について(alamofire?)

Extra argument 'error' in callとエラーが出ます。swiftをさわって数日なのでわかりません、どなたかご助力お願いします。

import UIKit 
import MapKit 
import Alamofire
class ViewController:
    UIViewController,UIPickerViewDelegate,UIPickerViewDataSource {
        @IBOutlet weak var map1: MKMapView!
        @IBOutlet weak var pickerView: UIPickerView!
        @IBAction func nextbutton(_ sender: Any) {
            performSegue(withIdentifier: "recommend", sender: nil)
        } 
        override func viewDidLoad() {
            super.viewDidLoad() 
        }
        override func didReceiveMemoryWarning() {
            super.didReceiveMemoryWarning()
                // Dispose of any resources that can be recreated.
        }
    }
func getArticles() {//←エラーが出る箇所
    Alamofire.request(.POST,"https://www.google.com") 
}
}