iOS无法识别的选择器发送到实例错误

Question

我在LoginViewController添加一个按钮。 这里是LoginViewComtroller

loginButton?.addTarget(self, action: #selector(LoginViewController.wechatLogin), for: .touchDown) 

func wechatLogin() { 
    sendWXAuthRequest() 
} 

func sendWXAuthRequest() { 
    print("hello") 
    let req: SendAuthReq = SendAuthReq() 
    req.scope = "snsapi_userinfo,snsapi_base" 
    WXApi.send(req) 
} 

func onResp(_ resp: BaseResp!) { 
    print(resp) 
} 

代码在这里是代码AppDelegate.swift

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 
     // Override point for customization after application launch. 
     //register 
     buildKeyWindow() 
     let right = WXApi.registerApp("My_Appid") 
     print(right) 
     return true 
    } 


    func application(_ application: UIApplication, handleOpen url: URL) -> Bool { 
     return WXApi.handleOpen(url, delegate: self) 
    } 


    func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool { 
     return WXApi.handleOpen(url, delegate: self) 
    } 

当我第一次运行该应用程序，有一个错误显示，当我进入微信。 然后我第二次运行它，有一些错误，说“无法识别的选择发送到实例”

Answer 1

尝试在您栋设置Other Linker Flags改变-all_load到-force_load