fb邀请代码不起作用

Question

这是行动代码

-(void)fnInvitefb {
     //Facebook Code
     NSString *facebookID = @"100000797858986";
     NSDictionary *parameters = @{@"to":@"100000739625716"
 };

 [FBWebDialogs presentRequestsDialogModallyWithSession:nil
 message:@"Test msg"
 title:@"Test Title"
 parameters:parameters
 handler:^(FBWebDialogResult result, NSURL *resultURL, NSError *error)
 {
     if(error)
     {
         NSLog(@"Some errorr: %@", [error description]);
         UIAlertView *alrt = [[UIAlertView alloc] initWithTitle:@"Invitiation Sending Failed"      
         message:@"Unable to send inviation at this Moment, please make sure your are connected 
         with internet" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
         [alrt show];
 }
 else
 {
      if (![resultURL query])
     {
        return;
     }

     NSDictionary *params = [self parseURLParams:[resultURL query]];
     NSMutableArray *recipientIDs = [[NSMutableArray alloc] init];
     for (NSString *paramKey in params)
     {
         if ([paramKey hasPrefix:@"to["])
         {
             [recipientIDs addObject:[params objectForKey:paramKey]];
         }
     }

     if ([params objectForKey:@"request"])
     {
         NSLog(@"Request ID: %@", [params objectForKey:@"request"]);
     }

     if ([recipientIDs count] > 0)
     {
          //[self showMessage:@"Sent request successfully."];
          //NSLog(@"Recipient ID(s): %@", recipientIDs);
          UIAlertView *alrt = [[UIAlertView alloc] initWithTitle:@"Success!" 
          message:@"Invitation(s) sent successfuly!" delegate:nil cancelButtonTitle:@"OK" 
          otherButtonTitles: nil];
          [alrt show];
     }

   }
 }
 friendCache:nil];

 // NSString *facebookID = @"100000797858986";     
}

并在app委托功能代码

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.

    // Set app's client ID for |GPPSignIn| and |GPPShare|.
    [GPPSignIn sharedInstance].clientID = kClientID;
    [GPPSignInButton class];

    [FBLoginView class];
    [FBProfilePictureView class];
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];

    [GPPDeepLink setDelegate:self];
    [GPPDeepLink readDeepLinkAfterInstall];
    return YES;
}

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
    NSString *urlString = [url absoluteString];

    if([urlString rangeOfString:@"681678928556808"].location==NSNotFound)
    {
        return [GPPURLHandler handleURL:url
                      sourceApplication:sourceApplication
                             annotation:annotation];
    }
    else
    {
        return [FBAppCall handleOpenURL:url sourceApplication:sourceApplication];
    }

    return [GPPURLHandler handleURL:url
                  sourceApplication:sourceApplication
                         annotation:annotation];

}

还在列表中配置相同的id是正确的或任何错误的东西。