XmlEditorService throws null exception

Hi,

I have create the XML designer page for my VSIX project. I have used the XmlEditorServiceclass from Microsoft.VisualStudio.XmlEditor.dll, verison = 11.0. When I used XMLdesigner in Visual Studio 2012 its working fine. If I open the XML designer page in VS2013 this throws the  System.NullReferenceException.

How can I resolve this. Any alternate dll to achieve this?

- Abbas K