Error generating xml document - Solution/Project specific.

[Chad]

I'm getting the above error in 1 solution/project for the following
code but the exact same code works fine in other projects. References
are the same. I also get xml serialization error from a web services
in this solution, but the exact same calls and code work in other
soutions. I compared the underlying sln, proj, etc, files, and they
appeared to match among working and this non working solution. Anybody
have any ideas?

Dim serializer As New
System.Xml.Seri alization.XmlSe rializer(GetTyp e(Licensing.Lic ense))
Dim oMemStream As New IO.MemoryStream
Dim oLicense As New Licensing.Licen se

Try
With oLicense
.UserID = "Test"
.StateID = "Test"
End With

serializer.Seri alize(oMemStrea m, oLicense) <-- errors here
MsgBox(Convert. ToBase64String( oMemStream.GetB uffer))
Catch ex As Exception
MsgBox(ex.Messa ge)
End Try

Ripping my hair out,

Chad