Facebook Login is not working in ios10 and xcode 8
<p><strong>it was working well in xcode 7.3.1 and ios 9.3 but after updating xcode it stoped working</strong> </p>

<p>here is code which i have used</p>

<pre><code>-(IBAction)ClickFacebook:(id)sender
{
 FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
    [login
     logInWithReadPermissions: @[@"public_profile",@"email"]
     fromViewController:self
     handler:^(FBSDKLoginManagerLoginResult *result, NSError *error)
    {
         if (error)
         {
             //NSLog(@"Process error");

             FBSDKLoginManager *loginManager = [[FBSDKLoginManager alloc] init];
             [loginManager logOut];
             [FBSDKAccessToken setCurrentAccessToken:nil];

         }
         else if (result.isCancelled)
         {
             NSLog(@"Cancelled");


         }
         else
         {
             FBSDKGraphRequest *requestFB = [[FBSDKGraphRequest alloc]
                                             initWithGraphPath:@"/me"
                                             parameters:@{ @"fields": @"name,email"}
                                             HTTPMethod:@"GET"];
             [requestFB startWithCompletionHandler:^(FBSDKGraphRequestConnection  *connection, id result,NSError  *error)
              {
                 //NSLog(@"%@",result);

              NSString *   strName=[result valueForKey:@"name"];

              NSString *   strEmail=[result valueForKey:@"email"];

                // [[NSUserDefaults standardUserDefaults]setValue:strEmail forKey:@"EMAIL"];
                // [[NSUserDefaults standardUserDefaults]setInteger:1 forKey:@"Logged_in"];
                // [[NSUserDefaults standardUserDefaults]setValue:strName forKey:@"NAME"];

                 UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
                 SignupJob *viewController = [sb instantiateViewControllerWithIdentifier:@"signupjob"];
                 viewController.strEmail=strEmail;
                 viewController.strName =strName;
                 [self.navigationController pushViewController:viewController animated:YES];
             }];
         }
     }];
}
</code></pre>

<p>but after login in facebook it will not return back to native app and when i have debugged code it falls in </p>

<pre><code>else if (result.isCancelled)
         {
             NSLog(@"Cancelled");


         }
</code></pre>

<p>loop and i got the console error just like this </p>

<blockquote>
  <p>flow:finish_connect 2016-11-08 11:55:02.424070 OPT JOBS[2410:49655] []
  nw_connection_endpoint_report [16 graph.facebook.com:443 ready
  resolver (satisfied)] reported event flow:finish_connect 2016-11-08
  11:55:02.424919 OPT JOBS[2410:49661] []
  __tcp_connection_start_block_invoke 16 sending event TCP_CONNECTION_EVENT_TLS_HANDSHAKE_COMPLETE in response to state ready
  and error (null) 2016-11-08 11:55:02.425626 OPT JOBS[2410:49661] []
  tcp_connection_event_notify 16 event:
  TCP_CONNECTION_EVENT_TLS_HANDSHAKE_COMPLETE, reason: nw_connection
  event, should deliver: true 2016-11-08 11:55:02.426673 OPT
  JOBS[2410:49661] [] tcp_connection_get_statistics DNS: 18ms/24ms since
  start, TCP: 100ms/135ms since start, TLS: 211ms/343ms since start
  2016-11-08 11:55:02.445829 OPT JOBS[2410:49655] []
  nw_endpoint_flow_protocol_connected [17.1 31.13.78.13:443 in_progress
  socket-flow (satisfied)] Output protocol connected 2016-11-08
  11:55:02.447545 OPT JOBS[2410:49655] []
  nw_endpoint_flow_connected_path_change [17.1 31.13.78.13:443 ready
  socket-flow (satisfied)] 2016-11-08 11:55:02.448063 OPT
  JOBS[2410:49655] [] nw_endpoint_flow_connected_path_change [17.1
  31.13.78.13:443 ready socket-flow (satisfied)] Connected path is satisfied 2016-11-08 11:55:02.448526 OPT JOBS[2410:49655] []
  nw_endpoint_resolver_receive_report [17 graph.facebook.com:443
  in_progress resolver (satisfied)] received child report:[17.1
  31.13.78.13:443 ready socket-flow (satisfied)] 2016-11-08 11:55:02.448948 OPT JOBS[2410:49655] [] nw_connection_endpoint_report
  [17.1 31.13.78.13:443 ready socket-flow (satisfied)] reported event
  flow:finish_connect 2016-11-08 11:55:02.449428 OPT JOBS[2410:49655] []
  nw_connection_endpoint_report [17 graph.facebook.com:443 ready
  resolver (satisfied)] reported event flow:finish_connect 2016-11-08
  11:55:02.449908 OPT JOBS[2410:49558] []
  __tcp_connection_start_block_invoke 17 sending event TCP_CONNECTION_EVENT_TLS_HANDSHAKE_COMPLETE in response to state ready
  and error (null) 2016-11-08 11:55:02.544663 OPT JOBS[2410:49558] []
  tcp_connection_event_notify 17 event:
  TCP_CONNECTION_EVENT_TLS_HANDSHAKE_COMPLETE, reason: nw_connection
  event, should deliver: true 2016-11-08 11:55:02.545103 OPT
  JOBS[2410:49558] [] tcp_connection_get_statistics DNS: 11ms/18ms since
  start, TCP: 112ms/146ms since start, TLS: 220ms/362ms since start
  2016-11-08 11:55:02.747101 OPT JOBS[2410:49551] []
  nw_socket_handle_socket_event Event mask: 0x4 2016-11-08
  11:55:02.747501 OPT JOBS[2410:49662] [] tcp_connection_cancel 16
  2016-11-08 11:55:02.747984 OPT JOBS[2410:49551] []
  nw_socket_handle_socket_event Socket received WRITE_CLOSE event
  2016-11-08 11:55:02.748361 OPT JOBS[2410:49551] []
  nw_endpoint_handler_cancel [16 graph.facebook.com:443 ready resolver
  (satisfied)] 2016-11-08 11:55:02.748705 OPT JOBS[2410:49551] []
  nw_endpoint_handler_cancel [16.1 31.13.78.13:443 ready socket-flow
  (satisfied)] 2016-11-08 11:55:02.749132 OPT JOBS[2410:49551] []
  __nw_socket_service_writes_block_invoke sendmsg(fd 9, 31 bytes): socket has been closed 2016-11-08 11:55:02.749475 OPT JOBS[2410:49551]
  [] nw_endpoint_flow_protocol_error [16.1 31.13.78.13:443 cancelled
  socket-flow (null)] Socket protocol sent error: [32] Broken pipe
  2016-11-08 11:55:02.749751 OPT JOBS[2410:49551] []
  nw_endpoint_flow_protocol_disconnected [16.1 31.13.78.13:443 cancelled
  socket-flow (null)] Output protocol disconnected 2016-11-08
  11:55:02.750124 OPT JOBS[2410:49551] [] nw_resolver_cancel_on_queue
  0x7a086580 2016-11-08 11:55:02.750463 OPT JOBS[2410:49551] []
  -[NWConcrete_tcp_connection dealloc] 16 2016-11-08 11:55:02.867926 OPT JOBS[2410:49661] [] nw_socket_handle_socket_event Event mask: 0x4
  2016-11-08 11:55:02.868244 OPT JOBS[2410:49558] []
  tcp_connection_cancel 17 2016-11-08 11:55:02.868817 OPT
  JOBS[2410:49661] [] nw_socket_handle_socket_event Socket received
  WRITE_CLOSE event 2016-11-08 11:55:02.869206 OPT JOBS[2410:49661] []
  nw_endpoint_handler_cancel [17 graph.facebook.com:443 ready resolver
  (satisfied)] 2016-11-08 11:55:02.869432 OPT JOBS[2410:49661] []
  nw_endpoint_handler_cancel [17.1 31.13.78.13:443 ready socket-flow
  (satisfied)] 2016-11-08 11:55:02.869919 OPT JOBS[2410:49661] []
  __nw_socket_service_writes_block_invoke sendmsg(fd 10, 31 bytes): socket has been closed 2016-11-08 11:55:02.870149 OPT JOBS[2410:49661]
  [] nw_endpoint_flow_protocol_error [17.1 31.13.78.13:443 cancelled
  socket-flow (null)] Socket protocol sent error: [32] Broken pipe
  2016-11-08 11:55:02.870549 OPT JOBS[2410:49661] []
  nw_endpoint_flow_protocol_disconnected [17.1 31.13.78.13:443 cancelled
  socket-flow (null)] Output protocol disconnected 2016-11-08
  11:55:02.870896 OPT JOBS[2410:49661] [] nw_resolver_cancel_on_queue
  0x7a08e1b0 2016-11-08 11:55:02.871251 OPT JOBS[2410:49661] []
  -[NWConcrete_tcp_connection dealloc] 17</p>
</blockquote>

<p><strong>so can anyone help me to find out the Solution for ios10 and xcode 8</strong></p>