ios - Import user read and want to read book using facebook sdk -

i'm working on book related app. i'm fetching user likes books using me/books , it's not required permissions , working fine.

now want user finished , want read books

1. me/books - no permission required

2. me/books.reads , me/books.wants_to_read required user_actions.books permission.

when try login permission "user_actions.books". i'm getting following error.

error : error domain=com.facebook.sdk code=2 "the operation couldn’t completed. (com.facebook.sdk error 2.)" userinfo=0x10d055b80 {com.facebook.sdk:errorloginfailedreason=com.facebook.sdk:systemlogincancelled, com.facebook.sdk:errorinnererrorkey=error domain=com.apple.accounts code=7 "the operation couldn’t completed. (com.apple.accounts error 7.)", com.facebook.sdk:errorsessionkey=, expirationdate: (null), refreshdate: (null), attemptedrefreshdate: 0001-12-30 00:00:00 +0000, permissions:(null)>}

code :

-(void)importbooksfromfacebook{  // if session state of 2 "open" states when button clicked if (fbsession.activesession.state == fbsessionstateopen     || fbsession.activesession.state == fbsessionstateopentokenextended) {      // close session , remove access token cache     // session state handler (in app delegate) called automatically     [fbsession.activesession closeandcleartokeninformation];      // if session state not of 2 "open" states when button clicked } else {     // open session showing user login ui     // must ask public_profile permissions when opening session     [fbsession openactivesessionwithreadpermissions:@[@"user_actions.books"]                                        allowloginui:yes                                   completionhandler:      ^(fbsession *session, fbsessionstate state, nserror *error) {            // if session opened          if (!error && state == fbsessionstateopen){              nslog(@"session opened");              // show user logged-in ui              // successful login import book using access token              return;          }          if (state == fbsessionstateclosed || state == fbsessionstateclosedloginfailed){              // if session closed              nslog(@"session closed");              // show user logged-out ui              [self userloggedout];          }           // handle errors          if (error){              nslog(@"error");              nsstring *alerttext;              nsstring *alerttitle;              // if error requires people using app make action outside of app in order recover              if ([fberrorutility shouldnotifyuserforerror:error] == yes){                  alerttitle = @"something went wrong";                  alerttext = [fberrorutility usermessageforerror:error];                  [self showmessage:alerttext withtitle:alerttitle];              } else {                   // if user cancelled login, nothing                  if ([fberrorutility errorcategoryforerror:error] == fberrorcategoryusercancelled) {                      nslog(@"user cancelled login");                       // handle session closures happen outside of app                  } else if ([fberrorutility errorcategoryforerror:error] == fberrorcategoryauthenticationreopensession){                      alerttitle = @"session error";                      alerttext = @"your current session no longer valid. please log in again.";                      [self showmessage:alerttext withtitle:alerttitle];                       // here handle other errors generic error message.                      // recommend check our handling errors guide more information                      // https://developers.facebook.com/docs/ios/errors/                  } else {                      //get more error information error                      nsdictionary *errorinformation = [[[error.userinfo objectforkey:@"com.facebook.sdk:parsedjsonresponsekey"] objectforkey:@"body"] objectforkey:@"error"];                       // show user error message                      alerttitle = @"something went wrong";                      alerttext = [nsstring stringwithformat:@"please retry. \n\n if problem persists contact , mention error code: %@", [errorinformation objectforkey:@"message"]];                      [self showmessage:alerttext withtitle:alerttitle];                  }              }              // clear token              [fbsession.activesession closeandcleartokeninformation];              // show user logged-out ui              //[self userloggedout];          }      }]; }  } 

i solved issue below stackoverflow answer :

https://stackoverflow.com/a/14696106/1237937

if ([[fbsession activesession] isopen]) {   /*     * if current session has no publish permission need reauthorize     */   if ([[[fbsession activesession] permissions]indexofobject:@"publish_actions"] == nsnotfound) {          [[fbsession activesession] requestnewpublishpermissions:[nsarray arraywithobject:@"publish_actions"] defaultaudience:fbsessiondefaultaudiencefriends                                               completionhandler:^(fbsession *session,nserror *error){                                                   [self postphoto];                                               }];      }else{         [self publishstory];     } }else{     /*       * open new session publish permission       */     [fbsession openactivesessionwithpublishpermissions:[nsarray arraywithobject:@"publish_actions"]                                        defaultaudience:fbsessiondefaultaudienceonlyme                                           allowloginui:yes                                      completionhandler:^(fbsession *session, fbsessionstate status, nserror *error) {                                          if (!error && status == fbsessionstateopen) {                                              [self publishstory];                                          }else{                                              nslog(@"error");                                          }                                      }]; }