Facebook share

[CrastaDaryl]

when FB apps present sharing gives the following message
share: { "error_message" : "Failed to generate preview for user."}
share result ret: 1

how to fix?

[CrastaDaryl]

what should the preview_property and action_type be when sharing open graph objects,
should i also create action types and object under my app if it runs only on iOS and android ?

[kimnamcham]

I have created the open graph in my app. But i got the same problems, here is my code:

FacebookAgent::FBInfo params;
params.insert(std::make_pair("dialog", "shareOpenGraph"));
params.insert(std::make_pair("action_type", "hbirdgame:Test"));
params.insert(
std::make_pair("preview_property_name", "cocos_document"));
params.insert(std::make_pair("title", "Cocos2d-x Game Engine"));
params.insert(
std::make_pair("image",
"http://files.cocos2d-x.org/images/orgsite/logo.png"));
params.insert(
std::make_pair("url", "http://cocos2d-x.org/docs/catalog/en"));
params.insert(std::make_pair("description", "cocos document"));
params.insert(std::make_pair("object_type","hbirdgame:Project"));

    if (FacebookAgent::getInstance()->canPresentDialogWithParams(params)) {
        FacebookAgent::getInstance()->dialog(params,
                [=](int ret ,std::string& msg) {
                    callbackInfo->setString(msg.c_str());
                });
    }