'；名为'；在twitter上发布时出错

我正试图从我的应用程序在Twitter上发帖，但我一直在日志中发现以下错误

LaunchServices: invalidationHandler called

下面是我在推特上发帖的方法。此方法位于继承的

UIViewController

TwitterViewController类中

-(void)tweetHighscore  {
if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter])
{
    SLComposeViewController *tweetSheet = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];
    [tweetSheet setInitialText:@"Tweeting from my own app! :)"];
    [self presentViewController:tweetSheet animated:YES completion:nil];
    CCLOG(@"it's working okay");
        }
}

编辑：

我设置了一个断点，似乎是

presentViewController:animated:completion:

导致了

invalizationhandler