saveInBackground (Parse) 抛出错误

如何解决saveInBackground (Parse) 抛出错误

我在以下 swift 代码中遇到问题，使用 import java.awt.image.*; import java.awt.*; import java.io.*; import javax.imageio.*; 在线保存数据。

Parse-Server

这是我在调试控制台中得到的：

let xxDico = ["N8": "Eight","N5": "Five"],upLoadParseUnit = PFObject(className: "numberClass",dictionary: xxDico)

print("xxDico : \(xxDico.count)")

upLoadParseUnit.saveInBackground {
    (succeeded:Bool,error:Error?) in
    if succeeded {
        print("\(#function) succeeded!!")
    } else {
        if error?.localizedDescription == "NAME-USED" {
            // A record prevIoUsly existed with the same name.
            print("\(#function) did not succeeded!!\nError: \(error?.localizedDescription)")
            return
        }
        
        print("Error(1) in \(#function)\n" + (error?.localizedDescription)!)
    }
}

这看起来很简单，但是我做错了什么才得到这个错误？ 我该怎么办？