Error 1120 when trying to convert a .fla to an .apk

I am trying to convert a flash game (that was AS2 but converted to AS3 by animate) to an apk, but whenever I click Publish in the Publish Settings, it gives me these errors after it tries to export the swf:

and this is the code that is generating the errors:

this.onEnterFrame = function () {
	this._x += 7;

	if (this._x > 450) {
		this.removeMovieClip();
	}

	for (i = 0; i < _root.nrEnemies; i++) {
		if (this.hitTest(_root["Enemy" + i])) {
			_root.score += 10;
			_root["Enemy" + i].reset();
			this.removeMovieClip();
		}

	}

}

 I'm not good at coding at all, so help would be appreciated, thanks!