VSC下调试代码，出错，请教：

[wuyuccc]

你好，我没学过什么编程，更没学过GO语言，想调试一下这程序，卡在：
cannot use "github.com/kataras/iris/context".Map literal (type "github.com/kataras/iris/context".Map) as type "github.com/kataras/iris/context".JSON in argument to ctx.JSON