Cannot Import Namespace I Created

[teguh123]

I put this on a file

Namespace ias
    Module robust
        <Extension()>
        Public Function getChildNode(ByVal node As mshtml.IHTMLDOMNode, ByVal child As Integer) As mshtml.IHTMLDOMNode
            Return node.childNodes(child)
        End Function
 
        Public hello As Double
    End Module
    Class SomeClass
 
    End Class
End Namespace

I put this on another file

Imports ias

Got error

Warning 1 Namespace or type specified in the Imports 'ias' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases. \\work\c\business\fromwork\currentprojects\program\library\vb.net\angela.vb 5 9 googlepages


What the hell does that suppose to mean?