TypeError: Error #1085: The element type “name” must be terminated by the matching end-tag “</key>”.

Description:
Here is another easy AS3 error. This Flash Error means that your XML is not valid because the end tag either does not match the opening tag or that the tag is simply missing. When it says “The element type” it is talking about the XML element. In my case this would be <name>. *Note: This AS3 error is similar to ActionScript Error #1100

Solution:
Check your spelling and make sure that you have properly nested tags.

Bad Code 1

var dogXML:XML = new XML();
dogXML =
<dog>
<name>Fido</namer>
</dog>

Bad Code 2

var dogXML:XML = new XML();
dogXML =
<dog>
<name>Fido
</dog>
</name>

Good Code

var dogXML:XML = new XML();
dogXML =
<dog>
<name>Fido</name>
</dog>

I hope this helps you solve ActionScript Error #1085

As Always Happy Flashing

Warning: 3553: Function value used where type void was expected. Possibly the parentheses () are missing after this function reference.

Description:
This is one of the best descriptions that I have seen for a Flash Error. This Flex/Flash Error is actually just a Flex/ Flash Warning. This error/warning means exactly what it says. You just forgot the parentheses () when you tried to make a method call.

Fix:
Add the Parenthesis

Bad Code:

var myTime:Timer = new Timer(1000, 3);
myTime.start;

or

var myDate:Date = new Date();
myDate.getDate;

Good Code:

var myTime:Timer = new Timer(1000, 3);
myTime.start();

or

var myDate:Date = new Date();
myDate.getDate();

As always Happy Flashing

ActionScript Error #1116: A user-defined namespace attribute can only be used at the top level of a class definition.

Description:
This ActionScript error will pop-up when a namespace is declared anywhere besides the class definition. What is a class definition you ask? It is simply the code that says names the class – something like ‘public class MyClass’

After the class is defined you are allowed to create custom(or ‘user-defined’) namespace on that level. Anywhere else in the code is not legal. This ActionScript Error is closely related to the Flash/Flex error #1114.
This AS3 error may also just be a typo. you may have typed something like ‘publi class’ rather than ‘public class’ or ‘prvate function’ rather than ‘private function’

Fix:
Either fix the misspelling in your code or place the ‘user-defined namespace’ inside the class definition. The second code example shows a namespace to separate cars and animals. Notice how the bad example nested the ‘user-defined namespace’ inside the constructor function.

Bad Code 1:

package com.cjm.somepackage
{
publi class MyClass {
publi function MyClass() {}
}
}

Good Code 1:

package com.cjm.somepackage
{
public class MyClass {
public function MyClass() {}
}
}

Bad Code 2:

package
{
public class MyClass
{
public namespace Cars;
public namespace Animals;public function MyClass() {
Animals var Jaguar:String = “A large cat chiefly of South America”;
Cars var jaguar:String = “A large car chiefly driven in North America”;
}

Cars function run():void {
trace(“At $30/mile”);
}

Animals function run():void {
trace(“On four legs”);
}
}
}

Good Code 2:

package
{
public class MyClass
{
public namespace Cars;
public namespace Animals;
Animals var Jaguar:String = “A large cat chiefly of South America”;
Cars var jaguar:String = “A large car chiefly driven in North America”;public function MyClass() {
}

Cars function run():void {
trace(“At $30/mile”);
}

Animals function run():void {
trace(“On four legs”);
}
}
}

Adobe has a great explanation of how to use namespaces as well as Collin Moock in Essential ActionScript 3 in Chapter 17

As always Happy Flashing

ActionScript Error #5000: The class ‘com.cjm.MyObj’ must subclass ‘flash.display.MovieClip’ since it is linked to a library symbol of that type.

Description:
This little error will pop up when you have used the linkage in your library and have not targeted the Class properly.

Fix:
Make sure that in your custom ActionScript Class that you have imported the MovieClip Class properly.

Bad Example:

package com.cjm{
public class MyObj extends MovieClip {

Good Example:

package com.cjm
{
import flash.display.MovieClip
public class MyObj extends MovieClip {

So import those classes properly to fix ActionScript Error #5000 and Happy Flashing