How to fix this duplicate function definition error? - actionscript-3

Question

I am totally new at Flash CS6 Action script 3. I have to do an assignment of a scene that have to have mouse, keyboard, enter frame, and time events. Every time I test the movie out, I keep on getting an error that says, 'duplicate function definition' about the 'enter frame event' and 'timer event' functions'. I have tried to rename the functions, but it didn't work. Is there another solution to this? Also, could you please show some examples? Thanks!
QuestionMC.addEventListener(MouseEvent.CLICK, onClick);
QuestionMC.addEventListener(MouseEvent.ROLL_OVER, questionOver);
QuestionMC.addEventListener(MouseEvent.ROLL_OUT, questionOut);
function questionOver(event:MouseEvent):void
{
event.target.alpha = .5;
}
function questionOut(event:MouseEvent):void
{
event.target.alpha = 1;
}
function onClick(event:MouseEvent):void
{
//trace("click!!!");
event.target.y -= 15;
event.target.rotation += 45;
}
QuestionMC.buttonMode = true;
stage.addEventListener(KeyboardEvent.KEY_DOWN, jump);
stage.addEventListener(KeyboardEvent.KEY_UP, land);
function jump (event:KeyboardEvent): void
{
trace(event.keyCode);
YoshiMC.y -= 50
stage.removeEventListener(KeyboardEvent.KEY_DOWN, jump);
stage.addEventListener(Event.ENTER_FRAME, flip);
}
function land (event:KeyboardEvent): void
{
YoshiMC.y += 50
stage.addEventListener(KeyboardEvent.KEY_DOWN, jump);
stage.removeEventListener(Event.ENTER_FRAME, flip);
}
function flip(event:Event):void
{
YoshiMC.rotation += 45;
YoshiMC.x += 20;
}
var jumpTimer:Timer = new Timer(5000,1);
jumpTimer.addEventListener(TimeEvent.TIMER, jump);
function jump (event:TimerEvent):void
{
planteaterMC.play();
}
jumpTimer.start();
var link:URLRequest = new URLRequest("");
buttongoeshere.addEventListener(MouseEvent.CLICK, clickHere);
function clickHere(event:MouseEvent):void
{
navigateToURL(link);
}
buttongoeshere.buttonMode = true;

Answer 1

Your jump function is declared twice, here:
function jump (event:KeyboardEvent): void
and here:
function jump (event:TimerEvent):void
You just need to rename one of them