Error>>>函数信号'(bool!,NSError!)-?Void与预期类型不兼容。。。。。
http://s15.postimg.org/geexdxwob/image.png
user.signUpInBackgroundWithBlock {
(succeeded: Bool!, error: NSError!) -> Void in
if error == nil {
// Hooray! Let them use the app now.
} else {
let errorString = error.userInfo["error"] as NSString
// Show the errorString somewhere and let the user try again.
}
}
}
无论在哪里定义这个完成处理程序,它似乎都会返回:(成功:Bool,错误:NSError!)。
尝试删除"!"Bool 之后