无法打开Facebook Messenger以从iOS App共享视频

Question

我想使用以下代码在Facebook Messenger中分享我的iOS应用程序中的视频：

NSURL *videoURL = [NSURL fileURLWithPath:[self.myViewController getSharingVideoPath]];
FBSDKShareVideo *video = [[FBSDKShareVideo alloc] init];
video.videoURL = videoURL;
FBSDKShareVideoContent *content = [[FBSDKShareVideoContent alloc] init];
content.video = video;
[FBSDKShareDialog showFromViewController:self withContent:content delegate:nil];

这是videoURL的输出：

file:///private/var/mobile/Containers/Data/Application/13D19738-5F9E-4C77-A502-0E18F5D09A10/Documents/anonymous/MyApp/144229926301/MyVideo.mov

当我跑步时，没有错误，但Facebook Messenger不会打开。

我从

复制了代码

https://developers.facebook.com/docs/sharing/ios 

是

- (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
  NSURL *videoURL = [info objectForKey:UIImagePickerControllerReferenceURL];

  FBSDKShareVideo *video = [[FBSDKShareVideo alloc] init];
  video.videoURL = videoURL;
  FBSDKShareVideoContent *content = [[FBSDKShareVideoContent alloc] init];
  content.video = video;
}