A DotNet Variable has not been instantiated.Attempting to call System.Xml.XmlNode.ChildNodes

Hi All

I have created some Dot Net Variable . There details are as below. Also i have attached the error.


Name DataType SubType
1. ChildNode DotNet System.Xml.XmlNode.'System.Xml, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
2. ChildNodeList DotNet System.Xml.XmlNode.'System.Xml, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'

.

When i Debug it is showing error in below mention code.
ChildNodeList:=ChildNode.ChildNodes();

I am missing constructors for this. Can you please help me constructors in NAV for these variables.
Please help with this error.