swift3 – 无法将’NSMutableURLRequest'(0x11beb7040)类型的值转换为’Alamofire.URLRequestConvertible'(0x11beb9040)

在构建我的代码时,然后崩溃Alamofire.request(请求为！URLrequestConvertiblE).response JSON().请提示如何修复此崩溃

let url = NSURL(String: "https://jsonplaceholder.typicode.com/users")
let request = NSMutableURLrequest(url:url! as URL)
request.httpR_719_11845@ethod = "GET"
request.SETVALue("application/json",forhttpHeaderField: "Content-Type")

Alamofire.request(request as! URLrequestConvertiblE).responseJSON(){ response in

       switch response.result
       {
          case .success(let data):                
             print(" i got my Data Yup",data)          
          case .failure(let error):
             print(error)                                
        }
    }