title: ios-Facebook SDK 3.0 Error 5 When Posting Status Update
body: <p>I am trying out adding facebook integration in an app using the new (beta) facebook ios sdk 3.0. All I would like to is post a status update to facebook. I used a FBLoginView to login to facebook. I put my app id in the plist as instructed on facebook. I put in some code to post to facebook.</p>
  
  <pre><code>(void)viewDidLoad
  {
  [super viewDidLoad];
  NSArray *perms;
  perms = [NSArray arrayWithObjects:@"status_update", nil];
  FBLoginView *loginview = 
  [[FBLoginView alloc] initWithPermissions:perms];
  
  loginview.frame = CGRectOffset(loginview.frame, 5, 5);
  loginview.delegate = self;
  
  [self.view addSubview:loginview];
  // Do any additional setup after loading the view, typically from a nib.
  
  }
  
  - (IBAction)poststatus:(UIButton *)sender {
  NSString *message = [NSString stringWithFormat:@"Test staus update"];
  
  [FBRequestConnection startForPostStatusUpdate:message
                              completionHandler:^(FBRequestConnection *connection, id result, NSError *error) {
  
                                  [self showAlert:message result:result error:error];
  
                              }];
  }
  - (void)showAlert:(NSString *)message
         result:(id)result
          error:(NSError *)error {
  
  NSString *alertMsg;
  NSString *alertTitle;
  if (error) {
      alertMsg = error.localizedDescription;
      alertTitle = @"Error";
  } else {
      NSDictionary *resultDict = (NSDictionary *)result;
      alertMsg = [NSString stringWithFormat:@"Successfully posted '%@'.\nPost ID: %@", 
                  message, [resultDict valueForKey:@"id"]];
      alertTitle = @"Success";
  }
  
  UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:alertTitle
                                                      message:alertMsg
                                                     delegate:nil
                                            cancelButtonTitle:@"OK"
                                            otherButtonTitles:nil];
  [alertView show];
  }
  </code></pre>
  
  <p>The odd thing is, this code works ONCE. After authenticating the user for the first time, I can post ONE status update successfully. After that, all subsequent attempts will fail with a FBiOSSDK error 5 (in the console, Error: HTTP status code:400). The only way to fix this is to remove the app from the facebook account and re-authenticate. I'm not sure what the problem is. I looked online for solutions but couldn't find anything. If anyone knows how to fix this, please let me know. Thanks</p>