Kelly,

This is most likely occurring since VB projects already have a namespace
associated with them.  If you check the project properties for the VB
project you'll see that the Root Namespace for your project has a value
(i.e. ClassLibrary1) so when you place the namespace directive within your
VB code the fully qualified name for your class is
ClassLibrary1.MyNamespaceName.MyClass.  Try setting the root namespace
value for the project properties to nothing (i.e. "").

Thanks!  Robert Gruen
Microsoft, VB.NET

This posting is provided "AS IS", with no warranties, and confers no rights.
--------------------
#Reply-To: "Good Enchiladas" <goodenchiladas@hotmail.com>
#From: "Good Enchiladas" <goodenchiladas@hotmail.com>
#Newsgroups: microsoft.public.dotnet.framework.sdk
#Subject: Build error for VB.NET but not C#
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#
#While building on a class library for an  VB.NET object model, I get
#something similar to the above error message, but not with C#.
#
#The steps to recreate the problem are as follows:
#
#1. Build a RootLevel.dll containing only this code:
#
#using System;
#namespace RootLevel {
#    public class Root {
#    }
#}
#
#2. Build a SecondLevel.dll containing a reference to RootLevel.dll and only
#this code:
#
#using System;
#namespace SecondLevel {
#    public class Child {
#        private RootLevel.Root _root;
#        public RootLevel.Root Root {
#            get {
#                return _root;
#            }
#            set {
#                _root = value;
#           }
#        }
#    }
#}
#
#3. Edit the Root class, add a reference to SecondLevel.dll and Re-build the
#RootLevel.dll. The edited code looks like this:
#
#using System;
#namespace RootLevel {
#    public class Root {
#        private SecondLevel.Child _child1; //there will be other children
#        public SecondLevel.Child Child1 {
#            get {
#                if (_child1 == null) {
#                    _child1 = new SecondLevel.Child();
#                    _child1.Root = this;
#                }
#                return _child1;
#            }
#        }
#    }
#}
#
#And it builds without an error. Unfortunately, using VB.NET, it doesn't.
#
#1.
#
#Public Class Root
#End Class
#
#2.
#
#Public Class Child
#    Private _root As RootLevelVB.Root
#    Public Property Root() As RootLevelVB.Root
#        Get
#            Return _root
#        End Get
#        Set(ByVal value As RootLevelVB.Root)
#            _root = value
#        End Set
#    End Property
#End Class
#
#3.
#
#Public Class Root
#    Private _child1 As SecondLevelVB.Child 'there will be other children
#    Public ReadOnly Property Child1() As SecondLevelVB.Child
#        Get
#            If _child1 Is Nothing Then
#                _child1 = New SecondLevelVB.Child
#                _child1.Root = Me
#            End If
#            Return _child1
#        End Get
#    End Property
#End Class
#
#I believe my conversion from VB.NET to C# is 100% equivalent.
#
#The reference to 'Me' in VB.NET step 3 is marked with the following error
by
#the Visual Studio.NET IDE:
#"Reference required to assembly 'RootLevel' containing the type
#'RootLevel.Root'. Add one to your project."
#
#
#Obviously, this a simplified example, where children are plugged into the
#root as needed. The children can be pretty complex and considerably
#different from each other. Children need to reference the root, and
children
#often need to reference each other.
#
#How can I fix the VB.NET situation. Is this a VB.NET compiler bug or a
#default C# setting that differs? How do I work around this circular
#compilation reference situation or whatever is going on here?
#
#Thanks,
#Kelly
#
#
#