TypeError: Error #2007: Parameter url must be non-null. at flash.media::Sound/_load()

[oliversen]

Im trying to make a MP3 player that gets the file from a XML hosted on my webpage. The FLA file has 3 keyframes with code.

I have a list from component panel called list, and a dynamic text field called status_txt

I can excecute the program, but when I click a channel in the list I get this error:

TypeError: Error #2007: Parameter url must be non-null.

at flash.media::Sound/_load()

at flash.media::Sound/load()

at PlayingSoundFromXMLfileWeb_fla::MainTimeline/frame3()[PlayingSoundFromXMLfileWeb_fla.MainTimeline::frame3:12]

Doesnt matter what channel I excecute.

Keyframe1:

stop();
import fl.controls.List;
import flash.net.URLRequest;
import flash.net.URLLoader;
import flash.events.Event;
list.width=stage.stageWidth;
list.height=600
list.x=(stage.stageWidth - list.width)/2;
list.y=0;
list.rowHeight=50;
var myFormat:TextFormat = new TextFormat();
myFormat.color="0xFFFFFF";
list.setRendererStyle("textFormat",myFormat);
var trackToPlay:String;
var pausePosition:int=0;
var songURL:URLRequest;
var i:uint;
var myXML:XML =new XML();
var XML_URL:String ="http://blogglista.no/something.xml";
var myXMLURL:URLRequest = new URLRequest(XML_URL);
var myLoader:URLLoader = new URLLoader(myXMLURL);
myLoader.addEventListener("complete", xmlLoaded);
function xmlLoaded(event:Event):void{
myXML = XML(myLoader.data);
var firstSong:String = myXML..Song.songTitle[0];
var firstArtist:String = myXML..Song.songArtist[0];
var firstURL:String= myXML..Song.songURL[0];
songURL = new URLRequest(firstURL);
status_txt.text ="1. " +firstSong + "- "+firstArtist;
for each (var Song:XML in myXML..Song){
i++;
var songTitle:String = Song.songTitle.toString();
var songsongURL:String = Song.songURL.toString();
var songArtist:String=Song.songArtist.toString();
//songURL = Song.songURL.toString();
list.addItem({label: i+"."+songTitle+"-"+songArtist, songString: songsongURL,Artist: songArtist, songNum: i});
}
var myArray = new Array(0,0);
list.selectedIndices= myArray;
gotoAndStop(3);
}

Then the second keyframe has this code:

import flash.net.URLRequest;
songURL = new URLRequest(trackToPlay);

And finally the third keyframe has this code:

import flash.media.Sound;
import flash.media.SoundChannel;
import flash.media.SoundLoaderContext;
import flash.events.Event;
stop();
var snd:Sound=new Sound();
var channel:SoundChannel;
var context:SoundLoaderContext= new SoundLoaderContext(5000, true);
snd.load(songURL, context);
channel = snd.play(pausePosition);
list.addEventListener(Event.CHANGE, itemClick);
function itemClick(event:Event):void{
channel.stop();
status_txt.text = "Now Playing: " + event.target.selectedItem.label + ".mp3";
trackToPlay = event.target.selectedItem.songURL;
//trace(event.target.selectedItem);
trace(event.target.selectedItem.songString);
gotoAndPlay(2);
}

My mission is to import quite a lot of stream URLs.

[kglad]

trackToPlay is needed (to be defined and non-null) in frame 2 and isn't defined until after it's used in snd.load().  fix that.

[oliversen]

I changed

var trackToPlay:String;

to

var trackToPlay:String="http://cast.loungefm.com.ua/terrace128?1372841071202.mp3";

Still getting the same issues unfortunately

[kglad]

i assume that's in frame 1.

if so, does frame 2 play before frame 3?  (it doesn't look like it.)

[oliversen]

Yeah, the changes made are in frame 1,

frame 1 plays first. then frame 3 , then frame 2 if the list is clickd and right back to frame 3

[kglad]

if frame 2 doesn't play, then songURL is still null and causing that message.

[oliversen]

Yeah, makes sense. Okay so I tried changing songURL in the first frame aswell.

var songURL:URLRequest;

var something="http://cast.loungefm.com.ua/terrace128?1372841071202.mp3";

songURL = new URLRequest(something);

[kglad]

you probably made songURL local to a function.  it needs to be global to the timeline.

if you don't understand how to fix that, or you don't think that's the problem, show your frame 1 code.

[oliversen]

Its global to the timeline( at least not inside a function)

stop();

import fl.controls.List;

import flash.net.URLRequest;

import flash.net.URLLoader;

import flash.events.Event;

list.width=stage.stageWidth;

list.height=600

list.x=(stage.stageWidth - list.width)/2;

list.y=0;

list.rowHeight=50;

var myFormat:TextFormat = new TextFormat();

myFormat.color="0xFFFFFF";

list.setRendererStyle("textFormat",myFormat);

var trackToPlay:String;

var pausePosition:int=0;

var songURL:URLRequest;

var something="http://cast.loungefm.com.ua/terrace128?1372841071202.mp3";

songURL = new URLRequest(something);

var i:uint;

var myXML:XML =new XML();

var XML_URL:String ="http://blogglista.no/something.xml";

var myXMLURL:URLRequest = new URLRequest(XML_URL);

var myLoader:URLLoader = new URLLoader(myXMLURL);

myLoader.addEventListener("complete", xmlLoaded);

function xmlLoaded(event:Event):void{

myXML = XML(myLoader.data);

var firstSong:String = myXML..Song.songTitle[0];

var firstArtist:String = myXML..Song.songArtist[0];

var firstURL:String= myXML..Song.songURL[0];

songURL = new URLRequest(firstURL);

status_txt.text ="1. " +firstSong + "- "+firstArtist;

for each (var Song:XML in myXML..Song){

i++;

var songTitle:String = Song.songTitle.toString();

var songsongURL:String = Song.songURL.toString();

var songArtist:String=Song.songArtist.toString();

//songURL = Song.songURL.toString();

list.addItem({label: i+"."+songTitle+"-"+songArtist, songString: songsongURL,Artist: songArtist, songNum: i});

}

var myArray = new Array(0,0);

list.selectedIndices= myArray;

gotoAndStop(3);

}

[kglad]

you didn't mention you changed your code and are now redefining songURL in xmlLoaded.  comment that line out and retest.

[oliversen]

Yeah, sorry about that. I have been doing alot of tries here

So this is what ive done now:

//songURL = new URLRequest(firstURL);

Still the same error.

[kglad]

show your code for the first and third frames.

[oliversen]

frame 1:

stop();

import fl.controls.List;

import flash.net.URLRequest;

import flash.net.URLLoader;

import flash.events.Event;

list.width=stage.stageWidth;

list.height=600

list.x=(stage.stageWidth - list.width)/2;

list.y=0;

list.rowHeight=50;

var myFormat:TextFormat = new TextFormat();

myFormat.color="0xFFFFFF";

list.setRendererStyle("textFormat",myFormat);

var trackToPlay:String;

var pausePosition:int=0;

var songURL:URLRequest;

var something="http://cast.loungefm.com.ua/terrace128?1372841071202.mp3";

songURL = new URLRequest(something);

var i:uint;

var myXML:XML =new XML();

var XML_URL:String ="http://blogglista.no/something.xml";

var myXMLURL:URLRequest = new URLRequest(XML_URL);

var myLoader:URLLoader = new URLLoader(myXMLURL);

myLoader.addEventListener("complete", xmlLoaded);

function xmlLoaded(event:Event):void{

myXML = XML(myLoader.data);

var firstSong:String = myXML..Song.songTitle[0];

var firstArtist:String = myXML..Song.songArtist[0];

var firstURL:String= myXML..Song.songURL[0];

//songURL = new URLRequest(firstURL);

status_txt.text ="1. " +firstSong + "- "+firstArtist;

for each (var Song:XML in myXML..Song){

i++;

var songTitle:String = Song.songTitle.toString();

var songsongURL:String = Song.songURL.toString();

var songArtist:String=Song.songArtist.toString();

//songURL = Song.songURL.toString();

list.addItem({label: i+"."+songTitle+"-"+songArtist, songString: songsongURL,Artist: songArtist, songNum: i});

}

var myArray = new Array(0,0);

list.selectedIndices= myArray;

gotoAndStop(3);

}

second:

import flash.net.URLRequest;

songURL = new URLRequest(trackToPlay);

third:

import flash.media.Sound;

import flash.media.SoundChannel;

import flash.media.SoundLoaderContext;

import flash.events.Event;

stop();

var snd:Sound=new Sound();

var channel:SoundChannel;

var context:SoundLoaderContext= new SoundLoaderContext(5000, true);

snd.load(songURL, context);

channel = snd.play(pausePosition);

list.addEventListener(Event.CHANGE, itemClick);

function itemClick(event:Event):void{

channel.stop();

status_txt.text = "Now Playing: " + event.target.selectedItem.label + ".mp3";

trackToPlay = event.target.selectedItem.songURL;

//trace(event.target.selectedItem);

trace(event.target.selectedItem.songString);

gotoAndPlay(2);

}

[kglad]

copy and paste the error message and indicate the problematic line number.

[oliversen]

I can run the code. When I push any of the 5 elements in my list, i get this error:

TypeError: Error #2007: Parameter url must be non-null.

at flash.media::Sound/_load()

at flash.media::Sound/load()

at PlayingSoundFromXMLfileWeb_fla::MainTimeline/frame3()[PlayingSoundFromXMLfileWeb_fla.MainTimeline::frame3:12]

[kglad]

what do you mean by "...push any...". are you clicking your list items????

if you are that's a completely different problem.

[oliversen]

I can excecute the program, but when I click a channel in the list I get tht error. Yeah, that was what I first described. Should maybe have made that clearer, sorry

[kglad · Accepted solution]

in your 3rd frame, what's this show:

1. function itemClick(event:Event):void{ 
2.  
3. channel.stop(); 
4. status_txt.text = "Now Playing: " + event.target.selectedItem.label + ".mp3"; 
5. trackToPlay = event.target.selectedItem.songURL; 
6. trace('ttp:',trackToPlay);
7. gotoAndPlay(2); 
8. }

when that shows null or an empty string, fix your parsing in xmlLoaded in your first frame, or fix your xml to work with your parsing.

[oliversen]

It showed null. You where right as always.

I changed the list addItem in frame 1 to this:

list.addItem({label: i+"."+songTitle, kgladMVP: songsongURL});

and changed the trackToPlay in frame3.

trackToPlay = event.target.selectedItem.kgladMVP;

Thank you very much kglad!

[kglad]

you're welcome.