in reply to
Re^2: Xml::Twig:Xpath Xpath expression error
in thread Xml::Twig:Xpath Xpath expression error
After reviewing your actual XML - it looks like your XPath is incorrect for your intentions. I don't see any attriubes in your XML.
Try something more like
to reference your information.
The previous XPath's are attempting to search for attributes in the FlowRater node. What you actually have is a child node called Name with some information in it.
As far as why this works in some modules, and not in others I would postulate that the designer included this as a "feature" to help others out. - Or maybe you found a bug.