I'm trying to get all nodes below but I am getting an error message of:

Overload resolution failed because no accessible 'GetAttributeValue' accepts this number of arguments.

Code:
Dim nodes As HtmlNodeCollection = docNode.SelectNodes("//input | //select | //textarea")

For Each node As HtmlNode In nodes

Dim id As String = node.GetAttributeValue("id")

Next
Any ideas on why I am getting this error message? Thanks