Setting ACLImportOption from C#

I’m trying to use C# to export and import entire dbs. The exporting works great, but when I’m try to set the ACLImportOption I get an exception.

Here’s a short piece of the code:

in this code _sFile is the file name to import and oDb is the newly created db

Domino.NotesStream oDbDef = _oSession.CreateStream();

if (oDbDef.Open(_sFile, “”))

{

Domino.NotesDXLImporter oAction = _oSession.CreateDXLImporter();

oAction.ReplaceDBProperties = true;

oAction.ACLImportOption = DXLIMPORTOPTION.DXLIMPORTOPTION_CREATE;

oAction.ExitOnFirstFatalError = false;

oAction.Import(oDbDef, oDb);

}

Any ideas why this is giving me an exception?