Using Swift IoS SDK - https://github.com/watson-developer-cloud/ios-sdk Can't get the example to work and can't figure it out.

Get the following error message:

Optional(Error Domain=com.watsonplatform.texttospeech Code=400 "No JSON object could be decoded" UserInfo={NSLocalizedDescription=No JSON object could be decoded, NSLocalizedFailureReason=Bad Request})

Code is as follows: (removed credentials)

// // ViewController.swift // watsonspeaks // // Created by Vinod Ralh on 6/03/2016. // Copyright © 2016 Vinod Ralh. All rights reserved. //

import UIKit import WatsonDeveloperCloud

class ViewController: UIViewController { var player: AVAudioPlayer? override func viewDidLoad() {

     super.viewDidLoad()
     
     let tts = TextToSpeech(username: "xxxxxxxxx", password: "xxxxxxxxx")
     tts.synthesize("All the problems of the world could be settled easily if men were only willing to think.") {
         
         data, error in
         
         if let audio = data {
             
             do {
                 self.player = try AVAudioPlayer(data: audio)
                 self.player!.play()
             } catch {
                 print("Couldn't create player.")
             }
             
         } else {
             print(error)
         }
         
         
     }
     
 }

}