Adobe Flash CS3 - Error creating flash movie file. Destination directory does not exist. Change your publish settings.

I am working through an audio player demonstration in the book "Foundation Actionscript 3.0".  When I try to publish my AudioDemo_final.FLA file I get the following error, "Adobe Flash CS3 - Error creating flash movie file. Destination directory does not exist. Change your publish settings."  

The following is displayed in my output panel >> Error opening URL 'file:///C|/Sites/flashcoder.net/FAS3/Audio/AudioDemo%5Ffinal.swf'

My file directory is set up like this:
AudioDemo_final.fla
song1.mp3
com.fas3.smc (folder)
        Main.as
        Sounds.as

//com.fas3.smc/Main.as
package com.fas3.smc {
	import flash.display.MovieClip;
	import com.fas3.smc.Sounds;
	import com.fas3.smc.ButtonManager;
	import flash.text.TextField;
	import flash.display.SimpleButton;
	
	public class Main extends MovieClip {
		private var soundManager:Sounds;
		private var buts:ButtonManager;
		
		public function Main() {
			soundManager=new Sounds(movScrubber, txtStatus, txtHeadPosition, txtTrackLength, txtArtist, txtTitle, volumeSlider, panSlider);
			soundManager.loadSong("song1.mp3");
			addChild(soundManager);
		}
	}
}

//com.fas3.smc/Sounds.as
package com.fas3.smc {
	import flash.media.Sound;
	import flash.media.SoundChannel;
	import flash.media.SoundLoaderContext;
	import flash.media.SoundTransform;
	import flash.media.ID3Info;
	import flash.events.Event;
	import flash.display.MovieClip;
	import flash.net.URLRequest;
	import flash.text.TextField;
	import flash.utils.Timer;
	import flash.events.TimerEvent;
	import fl.controls.Slider;
	import fl.events.SliderEvent;
	
	public class Sounds extends MovieClip {
		private var snd1:Sound;
		private var sc:SoundChannel;
		private var buffer:SoundLoaderContext;
		private var timerLoading:Timer;
		private var timerPlayHead:Timer;
		private var timerFF:Timer;
		private var timerRW:Timer;
		private var timerSpectrum:Timer;
		private var barWid:int = 200;
		private var barHi:int = 5;
		private var bytLoaded:int;
		private var bytTotal:int;
		private var pctLoaded:int;
		private var trueChronoLength:Number;
		private var txtStatus:TextField;
		private var txtTrackLength:TextField;
		private var txtHeadPosition:TextField;
		private var txtArtist:TextField;
		private var txtTitle:TextField;
		private var movScreen:MovieClip;
		private var movScrubber:MovieClip;
		private var multiplier:Number;
		private var nsMinutes:Number;
		private var nsSeconds:Number;
		private var pauseStatus:Boolean;
		private var playHeadPosition:Number;
		private var volumeSlider:Slider;
		private var panSlider:Slider;
		private var stVolume:SoundTransform;
		private var tempVol:Number=0.5;
		private var tempPan:Number=0;
		private var trackEnd:Boolean;
		private var trackStart:Boolean;
		
		public function Sounds(movScrubber:MovieClip, txtStatus:TextField, txtHeadPosition:TextField, txtTrackLength:TextField, txtArtist:TextField, txtTitle:TextField, volumeSlider:Slider, panSlider:Slider) {
			//Set movies and text fields to local references and to start positions and contents
			this.movScreen=movScreen;
			this.movScrubber=movScrubber;
			this.txtStatus=txtStatus;
			this.txtHeadPosition=txtHeadPosition;
			this.txtTrackLength=txtTrackLength;
			this.txtArtist=txtArtist;
			this.txtTitle=txtTitle;
			this.volumeSlider=volumeSlider;
			this.panSlider=panSlider;
			timerLoading=new Timer(100, 0);
			timerLoading.addEventListener(TimerEvent.TIMER, onLoading);
			timerLoading.start();
			
		}
		
		public function loadSong(song:String):void {
			snd1=new Sound(new URLRequest(song))
			snd1.addEventListener(Event.ID3, id3Handler)
		}
		
		public function onLoading(event.TimerEvent):void {
			bytLoaded = snd1.bytesLoaded;
			bytTotal = snd1.bytesTotal;
			if((bytTotal >= bytLoaded)&&(bytLoaded > 0)) {
				if(txtStatus.text!="Playing") {
					txtStatus.text="Loading";
				}
				movScrubber.movLoaderBar.width=((bytLoaded/bytTotal) * 400);
				if(bytLoaded == bytTotal) {
					if(txtStatus.text="Loading") {
						txtStatus.text="Load Complete";
					}
					timerLoading.stop()
				}
			}
		}
	}
}

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