Unity Serialization with XML Root problem: 'Does Not Denote Valid Type'

Hi guys,

I've been using Unity for a while now, but I'm only recently digging into XML files in order to save a list of objects. I'm following this tutorial:

http://wiki.unity3d.com/index.php?title=Saving_and_Loading_Data:_XmlSerializer

And I followed it to a T, but when I attempt to write to a file I get the following error: Assets/Scripts/ChickenClass.js(23,49): BCE0018: The name 'ChickenCollection' does not denote a valid type ('not found').

All I want to do is save an object and its paramaters as an element of a list of objects in a file, then read it later.

Here's my code:

 import System.Collections.Generic;
 import System.Xml.Serialization;
 import System.Xml;
 import System.IO;
  
  @XmlRoot("ChickenCollection")
 public class ChickenContainer
  {
      @XmlArray("Chickens")
      @XmlArrayItem("Chicken")
      public var Chickens : List.<Chicken>;
  
      public function Save(path : String)
      {
          var serializer : XmlSerializer = new XmlSerializer(ChickenContainer);
          var stream : Stream = new FileStream(path, FileMode.Create);
          serializer.Serialize(stream, this);
          stream.Close();
      }
  
      public static function Load(path : String):ChickenContainer 
      {
          var serializer : XmlSerializer = new XmlSerializer(ChickenContainer);
          var stream : Stream = new FileStream(path, FileMode.Open);
          var result : ChickenContainer = serializer.Deserialize(stream) as ChickenContainer;
          stream.Close();
          return result;
      }
  
          //Loads the xml directly from the given string. Useful in combination with www.text.
          public static function LoadFromText(text : String):ChickenContainer
          {
          var serializer : XmlSerializer = new XmlSerializer(ChickenContainer);
          return serializer.Deserialize(new StringReader(text)) as ChickenContainer;
      }
  }
 

And in my class file:

 class ChickenClass extends MonoBehaviour{
     public class Chicken{
         var name : String;
         var age : int; // 0 is egg, 1 is chick, 2 is hen
         var ageSeconds : float;
 
         // Aesthetic Features
         var featherColor : String;
         var beakColor : String;
         var combColor : String;
         var price : int;
         var hunger : int;
         var box : int;
 
         private function Chicken(){
          // Empty Constructor for serialization
         }
 
         public function Save(){
             // Write self to XML file
             var chickenCollection : ChickenCollection = ChickenContianer.Load(Path.Combine(Application.dataPath, "chickens.xml"));
             chickenCollection.Save(Path.Combine(Application.persistentDataPath, "chickens.xml"));
         }
 
         public function Chicken(chickenName : String, ageState : int, ageSecs : float, color0 : String, color1 : String, color2 : String, priceOfChicken : int, hungerNum : int, boxNum : int){
             name = chickenName;
             age = ageState;
             ageSeconds = ageSecs;
             featherColor = color0;
             beakColor = color1;
             combColor = color2;
             hunger = hungerNum;
             box = boxNum;
             price = priceOfChicken;
         }
     }
 }

Could you please point me in the right direction? I've looked through a lot of docs and I'm not sure where to go from here. My game is nearly functional, but it won't work without this saving feature.

Thank you so much.