anchor.diff:          else 
               let doc = new XmlDocument()
               doc.Load fi.FullName
  -            let manager = new XmlNamespaceManager(doc.NameTable)
  -
  -            Nuspec.KnownNamespaces
  -            |> List.iter (fun (name,ns) -> manager.AddNamespace(name, ns))
  -
  -            let ns = 
  -                let packageNs = manager.LookupPrefix(doc.LastChild.NamespaceURI)       
  -                if String.IsNullOrEmpty packageNs then
  -                    let metaDataNs = manager.LookupPrefix(doc.LastChild.LastChild.NamespaceURI)
  -                    if String.IsNullOrEmpty metaDataNs then
  -                        failwithf "Unrecognized namespace in nuspec file %s" fileName
  -                    else metaDataNs
  -                else packageNs
   
               let dependencies = 
  -                doc.SelectNodes(sprintf "//%s:metadata/%s:dependencies/%s:dependency" ns ns ns, manager)
  +                doc.SelectNodes "//*[local-name() = 'metadata']/*[local-name() = 'dependencies']/*[local-name() = 'dependency']"
                   |> Seq.cast<XmlNode>
                   |> Seq.map (fun node -> 
                                   let name = node.Attributes.["id"].Value                            
  
positive.code:       Dependencies : (string * VersionRequirement) list
        OfficialName : string
        FrameworkAssemblyReferences : FrameworkAssemblyReference list }
      static member KnownNamespaces =
          ["ns1","http://schemas.microsoft.com/packaging/2012/06/nuspec.xsd"
           "ns2","http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd"
           "ns3","http://schemas.microsoft.com/packaging/2013/01/nuspec.xsd"
           "ns4","http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd"
           "ns5","http://schemas.microsoft.com/packaging/2011/10/nuspec.xsd"]
  
      static member All = { References = NuspecReferences.All; Dependencies = []; FrameworkAssemblyReferences = []; OfficialName = "" }
      static member Explicit references = { References = NuspecReferences.Explicit references; Dependencies = []; FrameworkAssemblyReferences = []; OfficialName = "" }
  
negative.code:                 |> Seq.toList
  
              let officialName = 
                  doc.SelectNodes "//*[local-name() = 'metadata']/*[local-name() = 'id']"
                  |> Seq.cast<XmlNode>
                  |> Seq.head
                  |> fun node -> node.InnerText
  
              let references =
                  if List.isEmpty [ for node in doc.SelectNodes "//*[local-name() = 'references']" -> node] then [] else
                      [ for node in doc.SelectNodes "//*[local-name() = 'reference']" -> 
                          node.Attributes.["file"].InnerText]
              
              let frameworkAssemblyReferences =
                  if List.isEmpty [ for node in doc.SelectNodes "//*[local-name() = 'frameworkAssemblies']"  -> node] then [] else
                      [ for node in doc.SelectNodes "//*[local-name() = 'frameworkAssembly']" do
                          let name =  node.Attributes.["assemblyName"].InnerText
                          for framework in node.Attributes.["targetFramework"].InnerText.Split([|','; ' '|],System.StringSplitOptions.RemoveEmptyEntries) do
                              match FrameworkIdentifier.Extract framework with
  