Facebook在Swift 4中发布为页面

Question

我想在Facebook商家页面上显示我的帖子，但它不显示访问者部分。我该如何解决这个问题？

let params = [
                "access_token":"page_access_token",
                "caption":"Catption Message",
                "url":imageURL,
                "appId":FBSDKAccessToken.current().appID,
                "uid":FBSDKAccessToken.current().userID]

            FBSDKGraphRequest.init(graphPath: "\(pageId)/photos", parameters: params, httpMethod: "POST").start(completionHandler: { (connection, result, error) -> Void in