That is because you didn't supply enough information. Next time try to supply complete information with your request.
My solution works for MovieClip events: you make multiple events point to the same function handler.
You, on the other hand, are using a MouseListener that only handles onMouseDown, onMouseMove and onMouseUp.
The listener means you can do things without referring to a specific movieclip. However, the listener doesn't support "onReleaseOutside" because there is no outside of everything to release in.
Either a) accept this and live life happily.
Or b) rework your movie to use movieClip events.