Weird Swift 2.0 if/else statement error

This code works perfectly fine in swift version 1, however when I updated to swift 2.0 it gives me an error:

import UIKit

class ViewController: UIViewController {



    @IBOutlet var inpute: UITextField!



    @IBOutlet var output: UILabel!




    @IBAction func button(sender: AnyObject) {

print(inpute.text)

       let randomnum = arc4random_uniform(6)


let guessblank = Int(inpute.text!)

        if guessblank != nil {


            if Int(randomnum) == guessblank {
               output.text = "you got it correct"

            }



            else { output.text = "Wrong number"


            }


            // here is where the error is. It tells me "Expected              // expression" and "missing condition in if statement" 

 else { output.text = "please input a number"

            }

    }

    }

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}