ios - Swift 2 error, converting to JSON -

ive been having error swift 2, simple cant it

here's code before started updating swift 2:

func updateweatherinfo(latitude: cllocationdegrees, longitude: cllocationdegrees) {     let url = "http://api.openweathermap.org/data/2.5/forecast"     let params = ["lat":latitude, "lon":longitude]     println(params)  alamofire.request(.get, url, parameters: params)     .responsejson { (request, response, json, error) in         if(error != nil) {             println("error: \(error)")             println(request)             println(response)             self.loading.text = "internet appears down!"         }         else {             println("success: \(url)")             println(request)             var json = json(json!)             self.updateuisuccess(json)         }     } } 

here's line throwing error:

let json = json(json) 

here's whole func after started

    func updateweatherinfo(latitude: cllocationdegrees, longitude: cllocationdegrees) {         let url = "http://api.openweathermap.org/data/2.5/forecast"         let params = ["lat":latitude, "lon":longitude]         print(params)          alamofire.request(.get, url, parameters: params)             .responsejson { (request, response, json) in                      print("success: \(url)")                     print(request)                      let json = json(json)                     self.updateuisuccess(json!)          }     } 

updateuisuccess requires json value, @ moment have (request )

heres error description

after suggestion tried this:

.success(let data):                     let data_ar = data as! json // or nsdictionary or nsstring                     self.updateuisuccess(data_ar)                  case .failure(let data, let error):                     print("request failed error: \(error)")                   } 

but app crashes @ let data_ar = data as! json // or nsdictionary or nsstring

the variable json looks enum value. try this:

switch json {     case .success(let data):         let data_ar = data as! nsarray // or nsdictionary or nsstring      case .failure(let data, let error):         print("request failed error: \(error)")       }