Message pops up; Anyone else get this all the time or is it just me? :)
Cannot export the 3D view:
The referenced object is not valid, possibly because it has been deleted from the database, or its creation was undone.
at Autodesk.Revit.DB.CustomExporter.Export(View view)
at DatasmithRevitExporter.DatasmithSyncRevitCommand.OnExecute(ExternalCommandData InCommandData, String& OutCommandMessage, ElementSet OutElements)