Error message help

[jkell]

I would do a trace inside of your function and see what the e.keyCode is:

stage.addEventListener(KeyboardEvent.KEY_UP, playfile);
function playfile(e:KeyboardEvent):void {
trace(e.keyCode)
}

when I press "1" on my keyboard, I get 52 in the output window.

so the if statement would be something like this:

if(e.keyCode==52){
//execute your code here
}

the other issue I can forsee is you are using a timeline command to try and control your flvPlayback component. If you want to play the flvPlayback, just use .play and NOT gotoAndPlay(2);