Actionscript 3 CS6 1046:找不到类型或类型不是编译时常量：void

我收到一个1046错误，关于第7、12、17和22行，我收到一个flash网页，它在循环中不断闪烁，你在所有函数定义的末尾拼写了

void

错误

import flash.events.MouseEvent;
stop();



button1.addEventListener(MouseEvent.CLICK, gobutton1);
function button1_clicked(e:MouseEvent):viod{
        gotoAndStop("page1");
}

button2.addEventListener(MouseEvent.CLICK, gobutton2);
function button2_clicked(e:MouseEvent):viod{
        gotoAndStop("page2");
}

button3.addEventListener(MouseEvent.CLICK, gobutton3);
function button3_clicked(e:MouseEvent):viod{
        gotoAndStop("page3");
}

button4.addEventListener(MouseEvent.CLICK, gobutton4);
function button4_clicked(e:MouseEvent):viod{
        gotoAndStop("page4");
}

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它在cs6中，我用它来帮助别人，但在这一过程中我出了问题

function button1_clicked(e:MouseEvent):viod
// -------------------------------------^^