ios - No known class method for selector while using PushNotificationIOS -

i'm trying push notifications working in react native ios app. i'm following tutorial pushnotificationsios. have manually linked library well.

in appdelegate.m file looks follows,

/**  * copyright (c) 2015-present, facebook, inc.  * rights reserved.  *  * source code licensed under bsd-style license found in  * license file in root directory of source tree. additional grant  * of patent rights can found in patents file in same directory.  */ #import "rctpushnotificationmanager.h"  #import "appdelegate.h"  #import "rctrootview.h"  @implementation appdelegate  // required register notifications - (void)application:(uiapplication *)application didregisterusernotificationsettings:(uiusernotificationsettings *)notificationsettings {   [rctpushnotificationmanager didregisterusernotificationsettings:notificationsettings]; } // required register event. - (void)application:(uiapplication *)application didregisterforremotenotificationswithdevicetoken:(nsdata *)devicetoken {   [rctpushnotificationmanager didregisterforremotenotificationswithdevicetoken:devicetoken]; } // required notification event. - (void)application:(uiapplication *)application didreceiveremotenotification:(nsdictionary *)notification {   [rctpushnotificationmanager didreceiveremotenotification:notification]; }  - (bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions {   nsurl *jscodelocation;    /**    * loading javascript code - uncomment 1 want.    *    * option 1    * load development server. start server repository root:    *    * $ npm start    *    * run on device, change `localhost` ip address of computer    * (you can typing `ifconfig` terminal , selecting    * `inet` value under `en0:`) , make sure computer , ios device    * on same wi-fi network.    */    //jscodelocation = [nsurl urlwithstring:@"http://172.16.2.173:8081/index.ios.bundle?platform=ios&dev=true"];    jscodelocation = [nsurl urlwithstring:@"http://localhost:8081/index.ios.bundle?platform=ios&dev=true"];    /**    * option 2    * load pre-bundled file on disk. static bundle automatically    * generated "bundle react native code , images" build step.    */    //jscodelocation = [[nsbundle mainbundle] urlforresource:@"main" withextension:@"jsbundle"];    rctrootview *rootview = [[rctrootview alloc] initwithbundleurl:jscodelocation                                                       modulename:@"myapp"                                                initialproperties:nil                                                    launchoptions:launchoptions];    self.window = [[uiwindow alloc] initwithframe:[uiscreen mainscreen].bounds];   uiviewcontroller *rootviewcontroller = [uiviewcontroller new];   rootviewcontroller.view = rootview;   self.window.rootviewcontroller = rootviewcontroller;   [self.window makekeyandvisible];   return yes; }  @end 

but build fails errors,

no known class method selector 'didregisterusernotificationsettings:' no known class method selector 'didregisterforremotenotificationswithdevicetoken:' no known class method selector 'didreceiveremotenotification:' 

why this? how fix this?

---

ps: note

found alternative , worked fine. apple push notification services in ios 6 tutorial

please follow easy , simple raywenderlich tutorial. apns tutorial hope helps you.