xml loading in unity andriod

Hi I created an XML file containing the data of 3 fruits. I imported the XML file in Assets/Scripts folder now I am trying to connect to it and retrieve the data using the following code. I followed this example http://wiki.unity3d.com/index.php?title=Saving_and_Loading_Data:_XmlSerializer

  public class FruitObj : MonoBehaviour {
     
         [XmlAttribute("name")]
         public string Name;
     
         public int Sugar;
         public decimal Protein;
     }
     
     [XmlRoot("FruitCollection")]
     public class FruitContainer
     {
         [XmlArray("Fruits")]
         [XmlArrayItem("Fruit")]
         public List<FruitObj> Monsters = new List<FruitObj>();
     
     
         public static FruitContainer Load(string path)
         {
             var serializer = new XmlSerializer(typeof(FruitContainer));
             using (var stream = new FileStream(path, FileMode.Open))
             {
                 return serializer.Deserialize(stream) as FruitContainer;
             }
         }
     
         //Loads the xml directly from the given string. Useful in combination with www.text.
         public static FruitContainer LoadFromText(string text)
         {
             var serializer = new XmlSerializer(typeof(FruitContainer));
             return serializer.Deserialize(new StringReader(text)) as FruitContainer;
         }
     }

and I am trying to connect in my gameobject using

 public class AppleNutritionalFacts : MonoBehaviour
 {
 
     void Start()
     {
         var fruitCollection = FruitContainer.Load(Path.Combine(Application.streamingAssetsPath, "NutrionArXML.xml"));
     }
 }

Then I am getting this error

Can anyone please tell me what im doing wrong?