Ambiguous use of subscript. Array Swift IOS

Question

I try to compile on device but i get this error. Any help?. In the simulator works perfectly.

I get an ambiguous use of subscript error in the following code and was hoping somebody else has encountered this and know the fix.

 case .Success:
                if response.response?.statusCode == 200 {
                      print ("Respuesta 200")
                    if let value = response.result.value {

                        let respuestaJSON = JSON(value)
                        let objsonUSUARIOS = respuestaJSON["d"].object
                        let arrayUsuarios = objsonUSUARIOS["results"]!
                        //print ("Usuarios: ",String(arrayUsuarios))

                        for  i in 0 ..< arrayUsuarios!.count{
                            let boletines = boletinJSON()

                            if  let item = arrayUsuarios![i] as? [String: AnyObject]{
                                )

                                if let person = item["Title"] as? String
                                {
                                    boletines.name = person

                                }

                                if let person = item["Portada"] as? String
                                {
                                    boletines.imagen = person

                                }

                                if let person = item["Created"] as? String
                                {
                                    boletines.fecha = person
                                }

                                if let person = item["AttachmentFiles"] as? [String: AnyObject] {
                                    if let itemAttach = person["__deferred"] as? [String: AnyObject]{
                                        if let itemdeferred = itemAttach["uri"] as? String {
                                            boletines.urldescarga = itemdeferred
                                        }
                                    }
                                }

                                self.boletin.append(boletines)
                                self.view.hideToastActivity()

                            }

                        }



                    }
                      self.tableView.reloadData()

                    //  self.view.hideToastActivity()
                }

pkc · Accepted Answer · 2016-09-05 07:16:19Z

3

Inform the compiler what the intermediary object objsonUSUARIOS is of type

let objsonUSUARIOS = respuestaJSON["d"].object

After the above statement, the compiler does not know what kind of object he is dealing with. So make sure that you can actually do all the casting as below

let objsonUSUARIOS = respuestaJSON["d"].object as! Dictionary
let arrayUsuarios = objsonUSUARIOS["results"]! as! Array

edited Sep 5, 2016 at 7:16

answered Sep 5, 2016 at 6:46

pkc

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6 Comments

FireUser Over a year ago

ok thanks But in this line " let arrayUsuarios = objsonUSUARIOS["results"]! as! NSDictionary" i get "Could not cast value of type '__NSCFArray' (0x10a907d68) to 'NSDictionary'" when i changed "object" for " .object as! NSDictionary"

pkc Over a year ago

Cast it to Array. let arrayUsuarios = objsonUSUARIOS["results"]! as! NSArray

vadian Over a year ago

Please do not suggest NSArray / NSDictionary. Use Swift native types

pkc Over a year ago

@FireUser, Use Dictionary and Array instead of NSDictionary and NSArray respectively. @Vadian Thanks mate.

pkc Over a year ago

Array is a generic container that holds values of a specific type. So you can have an Array<Int> that holds integers, or an Array<String>, or according to your requirement. You can also solve the problem by using NSArray, as NSArray doesn’t use generics.

|

Nirav D · Accepted Answer · 2016-09-05 07:10:22Z

2

The problem is that you have not specified the type of object arrayUsuarios is Array, so try to explicit type cast the arrayUsuarios Array

let arrayUsuarios = objsonUSUARIOS["results"] as! [[String: AnyObject]]

answered Sep 5, 2016 at 7:10

Nirav D

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5 Comments

FireUser Over a year ago

perfect but i get this advert: Conditional cast from '[String : AnyObject]' to '[String : AnyObject]' always succeeds

Nirav D Over a year ago

Instead of if let item = arrayUsuarios![i] as? [String: AnyObject]{ just write like this item = arrayUsuarios![i]

FireUser Over a year ago

i changed but i get Cannot force unwrap value of non-optional type '[[String : AnyObject]]'

FireUser Over a year ago

I change to "let arrayUsuarios = objsonUSUARIOS["results"] as! [[String: AnyObject]]" and "if let item = arrayUsuarios![i] " but not working.

Nirav D Over a year ago

No need to write if let just write directly let item = arrayUsuarios![i]

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