Swift中使用AFNetworking出现Extra argument 'progress' in call.错误

Swift4.0中使用AFN框架出现了Extra argument 'progress' in call的错误, 代码如下:

get(urlString, parameters: parameters, progress: nil, success: { (task: URLSessionDataTask, result: AnyObject) in
        print(result)
    }) { (task: URLSessionDataTask, error: Error) in
        print(error)
    }

问题原因: 参数类型传入不对

解决: 以后在Swift中尽量使用类型推导, 不然就要跟方法的参数传入一样的类型:

get(urlString, parameters: parameters, progress: nil, success: { (task, result) in
            print(result)
        }) { (task, error) in
            print(error)
        }