Question

我有一个Bot，我启用了Facebook频道。当我使用自适应卡片的轮播向用户发送回复时......

我收到以下错误： Failed with error: Microsoft.Rest.HttpOperationException: SendActivityToUserAsync FAILED: {"error":{"message":"(#194) param name_placeholder[elements] has too few elements.","type":"OAuthException","code":194,"fbtrace_id":"EvKMopV4m\/J"}}
它还会一个接一个地显示单独的消息，按钮甚至是单独的消息......所以如果我的旋转木马中有3个项目，则会显示6个项目（每张卡后3个卡+一个按钮）。

我尝试搜索错误消息，但无法找到任何答案。你能指点我正确的方向吗？

这就是我的附件：

[LuisIntent("GetAllCards")]
public async Task GetAllCards(IDialogContext context, LuisResult result)
{
        var reply = context.MakeMessage();

        reply.Text = "Here's a few sample of cards..."; //does not appear in facebook?
        reply.Attachments = new List<Attachment>();
        reply.AttachmentLayout = AttachmentLayoutTypes.Carousel;

        if (context.ConversationData.GetValue<string>(ContextKeys.ChannelId) == "facebook")
        {
            await context.PostAsync("Here's a few sample of cards...");
        }

        using (var entities = new MyEntities())
        {
            var query = ...get stuff...                              

            var cpList = query.ToList();

            //each item is an attachment in carousel
            foreach (var cp in cpList)
            {
                var card = GetSingleCard(cp);
                var attachment = new Attachment()
                {
                    Content = card,
                    ContentType = "application/vnd.microsoft.card.adaptive",
                    Name = cp.DisplayName //this does not actually appear anywhere on the bot when I tested
                };
                reply.Attachments.Add(attachment);
            }

            await context.PostAsync(reply);                
}

private AdaptiveCard GetSingleCard(MyProduct cc)
{
    var card = new AdaptiveCard();

    card.Title = cc.DisplayName; //this is not shown anywhere in my bot test

    //title
    var title = new Container();
    card.Body.Add(title);

    var titleText = new TextBlock();
    title.Items.Add(titleText);
    titleText.Size = TextSize.Large;
    titleText.Text = $"**{cc.Title}**";

    var subTitleText = new TextBlock();
    title.Items.Add(subTitleText);
    subTitleText.Size = TextSize.Medium;
    subTitleText.Text = cc.SubTitle;
    subTitleText.Wrap = true;
    subTitleText.MaxLines = 1; 

    //image
    var cpImage = new AdaptiveCards.Image();
    card.Body.Add(cpImage);
    cpImage.Url = cc.ImageUrl;
    cpImage.Size = ImageSize.Large;

    //details
    var details = new FactSet();
    card.Body.Add(details);

    details.Facts.Add(new AdaptiveCards.Fact("Customer Rating", cc.Rating);
    details.Facts.Add(new AdaptiveCards.Fact("Detail A", cc.DetailA));
    details.Facts.Add(new AdaptiveCards.Fact("Detail B", cc.DetailB));


        var action = new OpenUrlAction();
        action.Url = $"https://google.com";
        action.Title = $"Read more";
        card.Actions.Add(action);


    return card;
}

使用附件回复后，Facebook Messenger中的Bot Framework出错

0 个答案: