ios - Issue regarding facebook log in kit -

if adding "manage_pages" key read permission app getting crashed idea why? , how solve it. permission approved facebook in app review issue there.

here code

fbsdkloginmanager *login = [[fbsdkloginmanager alloc] init]; [login setloginbehavior:fbsdkloginbehaviorweb]; [login logout]; [login loginwithreadpermissions: @[@"email",                                    @"user_photos",                                    @"public_profile",                                    @"user_posts",                                    @"user_likes",                                    @"user_friends",                                    @"user_hometown",                                    @"user_work_history",                                    @"user_location",                                    @"user_birthday",                                    @"user_about_me",                                    @"user_managed_groups",                                    @"manage_pages"                                    ]              fromviewcontroller:controller                         handler:^(fbsdkloginmanagerloginresult *result, nserror *error) {                              if (error) {                                 nslog(@"process error");                                 callback(nil);                             } else if (result.iscancelled) {                                 nslog(@"cancelled");                                 callback(nil);                             } else {                                 if([fbsdkaccesstoken currentaccesstoken]) {                                     nsstring *accesstoken = [fbsdkaccesstoken currentaccesstoken].tokenstring;                                     callback(accesstoken);                                 }                                 else {                                     callback(nil);                                 }                             }                         }]; 

you need add manage_pages key in publishpermissions. not in readpermissions.

[login loginwithpublishpermissions:@[@"manage_pages"]        fromviewcontroller: .. ];