我的应用程序将在watchOS 3.2上运行，但它会无限期地加载到watchOS 3.1上

Question

所以我创建了一个简单的应用程序，在手表上显示一个人的以太平衡。问题是它运行时应该在watchOS 3.2上运行，它只是不会加载到watchOS 3.1（实际的手表和模拟器）。 Xcode不会显示任何错误或警告。

InterfaceController.swift的代码（这是我的第一个手表应用，所以看起来有点乱）：

class InterfaceController: WKInterfaceController {

    override func awake(withContext context: Any?) {
        super.awake(withContext: context)

        // Configure interface objects here.
    }

    var ether : Float = 0;

    override func willActivate() {
        // This method is called when watch view controller is about to be visible to user

        super.willActivate()

        let url = URL(string: "https://api.nanopool.org/v1/eth/balance/0x90e47be1e1cc1dc51d975bcd98403e49b85322ad")
        let task = URLSession.shared.dataTask(with: url!) { (data, response, error) in
            if error != nil{
                print("error")
            }
            else{
                if let content = data{
                    do{
                        let myJSON = try JSONSerialization.jsonObject(with: content, options: JSONSerialization.ReadingOptions.mutableContainers) as AnyObject

                        if let balance = myJSON.object(forKey: "data"){
                        let amount = myJSON.object(forKey: "data") as! Float
                            self.ether = amount
                        }
                    }
                    catch{

                    }
                }
            }
        }
        task.resume()
    }

    override func didDeactivate() {
        // This method is called when watch view controller is no longer visible
        super.didDeactivate()
    }

    @IBOutlet var showBalance: WKInterfaceLabel!

    @IBAction func updateBalance() {
        let calculate = (ether/0.2)*100
        let percent = round(calculate)
        let balance = "\(ether) ETH\n\(percent)%"
        showBalance.setText(balance)
    }
}