Duplicate function definition, please help

programming flash
1 
stop();


next1.addEventListener(MouseEvent.CLICK, gotoNext);
repeat1.addEventListener(MouseEvent.CLICK, repeat11);


function gotoNext(e:MouseEvent):void
{
    play();
}


function repeat11(e:MouseEvent):void
{
    gotoAndPlay(3);
}

Output window:
Frame 1, Line 11: 1023:Incompatible Override
Frame 1, Line 11: 1021: Duplicate Function Definition

This is seriously not making any sense. A little help please?