Trying to do a simple xml import, set up an xml file with following structure:

<root>
  <contact>
    <nodename>Torben Schmidt</nodename>
    <name>Torben Schmidt</name>
    <address></address>
    <zip></zip>
    <city></city>
    <country></country>
    <location>Jylland og Fyn</location>
    <bphone>+45 2028 4355</bphone>
    <dphone></dphone>
    <mphone></mphone>
    <wmail><![CDATA[[email protected]]]></wmail>
    <pmail><![CDATA[]]></pmail>
    <pic><![CDATA[1224]]></pic>
  </contact>
  ..
</root>

Then doing an import and mapping nodename to name at the top of the mapping form, and other fields to corresponding fields for doctype, There is no duplicate nodename tags (it's an export from an old site), but I get the following error every time i try none the less:

[ArgumentException: An item with the same key has already been added.]
   System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) +56
   System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) +10416334
   System.Collections.Generic.Dictionary`2.Add(TKey key, TValue value) +12
   UmbImport.ImportSteps.MapProperties.UpdateState(ImportState state) +269
   UmbImport.UmbImport.UpdateState() +73
   UmbImport.UmbImport.NextButton_Click(Object sender, EventArgs e) +16
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +115
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +140
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +29
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2981

Anybody got any ideas what's happening?

Regards
Jesper Hauge