Error 1119: Access of a possibly undefined property with a keyboard event

[Matt201496]

Scene 1, Layer 'Layer 1', Frame 1, Line 5	1119: Access of possibly undefined property LEFT through a reference with static type Class.
Scene 1, Layer 'Layer 1', Frame 1, Line 6	1119: Access of possibly undefined property DOWN through a reference with static type Class.
Scene 1, Layer 'Layer 1', Frame 1, Line 7	1119: Access of possibly undefined property UP through a reference with static type Class.
Scene 1, Layer 'Layer 1', Frame 1, Line 8	1119: Access of possibly undefined property RIGHT through a reference with static type Class.

I think have to set Keyboard.Event.LEFT,UP,DOWN,RIGHT to public but not sure how.

import flash.events.KeyboardEvent;

stage.addEventListener(KeyboardEvent.LEFT, characterMove);

stage.addEventListener(KeyboardEvent.DOWN, characterMove); \\\ Event listeners for keyboard up left etc.

stage.addEventListener(KeyboardEvent.UP, characterMove);

stage.addEventListener(KeyboardEvent.RIGHT, characterMove);

new public; function characterMove(evt:KeyboardEvent):void {     \\ function to move person

    switch (evt.keyCode){

            case Keyboard.LEFT:

                person.x -= 20;

            case Keyboard.RIGHT:

                person.x += 20;

            case Keyboard.DOWN:

                person.y -= 20;

            case Keyboard.UP :

                person.y += 20;

            default:

                trace("Keyboard Event Error")

        }

    }

[Ned Murphy · Accepted solution]

Your listeners need to specify KeyboardEvents, and UP,DOWN,LEFT,RIGHT are not KeyboardEvents, they are Keyboard keyCodes.  Use either KEY_DOWN or KEY_UP in place of all of them in the listeners.

[Matt201496]

Thanks that worked.

[Ned Murphy]

You're welcome

[Ned Murphy]

You also need to add breaks in each of your cases.

There are a few of syntax errors so hopefully you didn't copy and paste your actual code.