Root element is missing.
System.Xml.XmlException: Root element is missing.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlTextReader.Read()
at System.Xml.XPath.XPathDocument.LoadFromReader(XmlReader reader, XmlSpace space)
at System.Xml.XPath.XPathDocument..ctor(XmlReader reader, XmlSpace space)
at XmlUtilities.BaseTransform.StringFileTransform(String xmlString, String xslPath)