Code works but not when copied to another file
Hi everyone,
I am writing an educational game that will be used for our introductory chemistry courses. I'm having trouble pulling in xml data from my xml file. I always test what I want to do in a small file before adding it to the master game file. The strange this is that the code works in the test file but when I copy and paste it into the master file I get Error #1009. As I understand it i'm getting this because something is missing that flash cant find so it doesn't fill in the information that I want. I ran the debugger which traced the error to line 65 ( which changes a little bit depending on how many spaces I add between code but I will highlight it). When I disable the line of code the error just lists the next line because I'm trying to pull data into 6 text boxes one for each of 6 categories and I figure that all 6 are somehow broke and when I disable one it just lists the next broken one. Now again I am copying and pasting between the file the works and the file that doesn't, and I have double and triple checked my instance names and even changed them and every other variable. Onto the code!
<?xml version="1.0" encoding="utf-8"?>
<category>
<category1> Hi Mom</category1>
<category2> Monoatomic Ions </category2>
<category3> Polyatomic Ions </category3>
<category4> Acids and Bases </category4>
<category5> Elements </category5>
<category6> My fault </category6>
</category>
Here are my .xml categories. As you can see, nothing too out of the ordinary.
import flash.events.Event;
import flash.net.URLRequest;
var textXML:XML;
var xmlLoader:URLLoader = new URLLoader();
xmlLoader.addEventListener(Event.COMPLETE, xmlLoaded);
xmlLoader.load(new URLRequest("categories.xml"));
function xmlLoaded(evt:Event):void
{
var textXML = new XML(xmlLoader.data);
C1.text = textXML.category1;
C2.text = textXML.category2;
C3.text = textXML.category3;
C4.text = textXML.category4;
C5.text = textXML.category5;
C6.text = textXML.category6;
gotoAndStop(2);
}
I was following a tutorial by Tod Perkins on Lynda.com and this is how it is supposed to be written. Here is a screenshot of what it looks like when I run the test file.
This is good. This is exactly what I want. Now when I copy and paste the above code into my main file I get this error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at ChemScholar5_fla::MainTimeline/xmlLoaded()[ChemScholar5_fla.MainTimeline::frame1:65]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()
I turned on the permit debugging option and the debugger is telling me the problem is on frame 1 line 65: that corresponds to the following
import flash.events.Event;
import flash.net.URLRequest;
var textXML:XML;
var xmlLoader:URLLoader = new URLLoader();
xmlLoader.addEventListener(Event.COMPLETE, xmlLoaded);
xmlLoader.load(new URLRequest("categories.xml"));
function xmlLoaded(evt:Event):void
{
var textXML = new XML(xmlLoader.data);
C1.text = textXML.category1;
C2.text = textXML.category2;
C3.text = textXML.category3;
C4.text = textXML.category4;
C5.text = textXML.category5;
C6.text = textXML.category6;
gotoAndStop(2);
}
If I disable the line of code, it just errors the next one as so:
import flash.events.Event;
import flash.net.URLRequest;
var textXML:XML;
var xmlLoader:URLLoader = new URLLoader();
xmlLoader.addEventListener(Event.COMPLETE, xmlLoaded);
xmlLoader.load(new URLRequest("categories.xml"));
function xmlLoaded(evt:Event):void
{
var textXML = new XML(xmlLoader.data);
/*C1.text = textXML.category1;*/
C2.text = textXML.category2;
C3.text = textXML.category3;
C4.text = textXML.category4;
C5.text = textXML.category5;
C6.text = textXML.category6;
gotoAndStop(2);
}
Here is another strange thing. If I remove C1-C6 and attempt to trace all of the data or part of the data it is being parsed and loaded correctly:
import flash.events.Event;
import flash.net.URLRequest;
var textXML:XML;
var xmlLoader:URLLoader = new URLLoader();
xmlLoader.addEventListener(Event.COMPLETE, xmlLoaded);
xmlLoader.load(new URLRequest("categories.xml"));
function xmlLoaded(evt:Event):void
{
var textXML = new XML(xmlLoader.data);
trace(textXML.category1);
C1.text = textXML.category1;
C2.text = textXML.category2;
C3.text = textXML.category3;
C4.text = textXML.category4;
C5.text = textXML.category5;
C6.text = textXML.category6;
gotoAndStop(2);
}
Here on my computer I have highlighted the output of the trace (great) and I left the other code intact so that I would also get the TypeError. Correspondingly because I added a new line of code it says that the broken line is now 66 as I would expect. I am at a complete loss so hopefully I have described the problem well enough and someone is able to help. Thanks everyone!!
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