交易电子邮件temeplate中的警告提示：ID被错误地调用

Question

我在电子邮件上收到订单通知并且用信用卡付款进行订单时，woocommerce（Wordpress）出现问题，我收到此错误：

let jsonData = try? JSONSerialization.data(withJSONObject: jsonToRegistrer, options: .prettyPrinted) let jsonString = String(data: jsonData!, encoding: .utf8) //Note it's a force unwrap but just to debug, avoid using force unwrap print("jsonString: \(jsonString)")