无法将'NSMutableURLRequest'类型的值转换为预期的参数类型'SessionManager'

Question

所有。 现在我通过观看编码进行转发来研究iOS和swift，alamofire。我使用swift3和alamofire4，但他们教它alamofire3和swift2，所以我很困惑。你能帮我解决问题吗？

有类似的错误“无法将类型'NSMutableURLRequest'的值转换为预期的参数类型'SessionManager'”

override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        if let Purl = NSURL(string: self.projectUrl){
            var mutableUrlRequest = NSMutableURLRequest(url: Purl as URL)
            mutableUrlRequest.setValue("JWT \(self.tokenUse)", forHTTPHeaderField: "Authorization")
            mutableUrlRequest.httpMethod = "GET"
            var getProjects = Alamofire.SessionManager.request(mutableUrlRequest)
                .responseJSON{ response in
                    print(response.request)
                    print(response.response)
                    print(response.data)
                    print(response.result)
        }
    }
}

Answer 1

Alamofire很可能期望使用原生的Swift 3语法：

   if let Purl = URL(string: self.projectUrl) {
        var mutableUrlRequest = URLRequest(url: Purl)

URLRequest可自由声明为var iable。