Symbol 'LoseMessage', Layer 'Reset_btn', Frame 1, Line 15 1061: Call to a possibly undefined method

Question

Hi I have a game set up, when you deplete your lives it takes you to a lose screen (Symbol), on that screen I have a button called Reset Game.
The button name is "Reset_btn"
The button instance is "resetbtn"
I have the code in the symbol and I am getting this error:
Symbol 'LoseMessage', Layer 'Reset_btn', Frame 1, Line 15    1061: Call to a possibly undefined method addEventListener through a reference with static type Class.
Here is my code:
//Reset Button Code
resetbtn.addEventListener(MouseEvent.CLICK, Reset_btn);
function Reset_btn(event:Event):void
        gotoAndStop(1);
I have given my button and instance name and a name for the button, why am i still getting this error, can anyone help?
Casey

Answer 1

Ok.. so
This is on a separate timeline, its a movieclip which has a timeline inside it.
on frame 1 of that timeline inside the movieclip I have my button inside the movieclip.
The movieclip is activated when it meets a certain condition.
In this case when lives have been depleted to 0 from 3 a gameover screen appears.
A button is on that gameover screen which should take me back to the main menu or Frame 1 of the actual game in this case.
Here is the code for the condition for when game over screen appears:
if(cursor.hitTestObject(enemyAppear2))
                        enemyAppear2.parent.removeChild(enemyAppear2);
                        stage.removeEventListener(MouseEvent.CLICK, clickEnemy2);
                        life--
                        messageDisplay2.text = String(life);
                        if(life == 0)
                            enemyTimer2.stop();
                            var loseText:LoseMessage = new LoseMessage();
                            loseText.x = 0;
                            loseText.y = 0;
                            parent.addChild(loseText);
                            Mouse.show();
This code is in my main gaming code timeline.
The code im trying to show is inside the movieclip which i have set up.
Is this a clear enough explanation?