UIActivityViewController не делится с Wechat

Я пытаюсь поделиться изображением, URL-адресом и текстом с WeChat, но я получаю это сообщение. Я просто использую UIActivityViewController для обмена контентом с wechat. Но не в силах поделиться.

вот мой код:

 UIImage * shareImage = [UIImage imageNamed:@"igo-logo-small"];
UINavigationController * nav = fromVC.navigationController;

// error handling
NSString * error = nil;
for (;;) {

    // sanity
    if (text == nil || url == nil || shareImage == nil || nav == nil) {

        error = @"arguments not all valid";
        break;
    }

    // setup share controller
    UIActivity *activity = [[UIActivity alloc] init];
    NSArray *applicationActivities = [[NSArray alloc] initWithObjects:activity, nil];
    FilteredActivityViewController * activityController = [[FilteredActivityViewController alloc] initWithActivityItems:@[text, shareImage, url] applicationActivities: applicationActivities];

    if (activityController == nil) {

        error = @"share controller nil";
        break;
    }

    // success - made it to end
    [nav presentViewController:activityController animated:YES completion:nil];
    activityController.completionWithItemsHandler = ^(NSString *activityType, BOOL completed, NSArray *returnedItems, NSError *activityError) {
        NSLog(@"completionWithItemsHandler, activityType: %@, completed: %d, returnedItems: %@, activityError: %@", activityType, completed, returnedItems, activityError);
        if ([activityType isEqualToString:@"com.apple.UIKit.activity.CopyToPasteboard"] && completed) {
            [MBProgressHUD showSuccessWithoutImage:@"Copied" toView:nav.view];
        }
    };