错误：使用sparklyr包的意外数据类型

Question

我在创建sparklyr数据表时遇到以下错误。

因此，我无法在Rstudio的火花窗口中看到火花数据表。

任何帮助将不胜感激。谢谢！

function someFunction(e:Event):void
{
    // Get the reference to the button and access its name.
    var aButton:DisplayObject = e.currentTarget as DisplayObject;
    var aName:String = aButton.name;

    // If all the buttons are named in the way you put it:
    // Extract digits.
    var aDigits:String = aName.substr(3);

    // Convert them into number.
    var anIndex:int = int(aDigits);

    // Profit!
    trace(anIndex);
}