Swift 3 and Xcode 8.2 - Ambiguous reference to member 'Subscript'

Question

I get a error and I do not know why ... can anyone help me? I am despairing! No other post has helped me. Thank you very much in advance for your answer!!

PS: I get the error only when I try to run on my own iphone

Image with Error

func parseJson() {
    let username: String = UserDefaults.standard.value(forKey: "username")! as! String
    let url=URL(string:"https://website.de")
    do {
        let allBetData = try Data(contentsOf: url!)
        let allBet = try JSONSerialization.jsonObject(with: allBetData, options: JSONSerialization.ReadingOptions.allowFragments) as! [String : AnyObject]


        if let arrJSON = allBet["bets"] as! [String : AnyObject]? {
            for index in 0...arrJSON.count-1 {



                let aObject = arrJSON[index] as [String : AnyObject]?

                header.append(aObject["header"] as! String)
                rowDescription.append(aObject["rowDescription"] as! String)
                bodytext.append(aObject["bodytext"] as! String)
            }
        }



        print("data loaded")
        self.tableView.reloadData()
    }
    catch {
        self.logout()
    }

}

Answer 1

Ok, this is totally fundamental and you need to make sure you get this.

One line at a time...

if let arrJSON = allBet["bets"] as! [String : AnyObject]? {

Here you say, "I am making this thing called arrJSON, it's a dictionary with string keys and any sort of value". Good so far? Then you...

for index in 0...arrJSON.count-1 {

"I would like to loop the number of times that there are items"...

 let aObject = arrJSON[index] as [String : AnyObject]?

"...and get the object who's key is this number".

Do you understand the problem now?