Same error (MOSS 2007, NW2007 and NR2007):
Exception: An item with the same key has already been added. at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at Nintex.Reporting.Collectors.WSS.NRSensorObjects.NRSite.<get_UserLookup>b__5(SqlDataReader reader)
at Nintex.Reporting.Collectors.WSS.DBWrapper.ExecuteReader(String storeProcName, SqlParameter[] parameters, DBProcessExecuteReader dbProcessExecuteReader)
at Nintex.Reporting.Collectors.WSS.NRSensorObjects.NRSite.get_UserLookup()
at Nintex.Reporting.Collectors.WSS.NRSensorObjects.NRUser.UpdateUserRelation()
at Nintex.Reporting.Collectors.WSS.NRSensorObjects.NRSite.UpdateUser(SPListItem item)
at Nintex.Reporting.Collectors.WSS.NRSensorObjects.NRSite.<>c__DisplayClassb.<UpdateUsers>b__a(SPListItemCollection items)
at Nintex.Reporting.Collectors.WSS.Helper.ProcessListByPages(SPList list, UInt32 pageSize, DateTime lastModifiedUtc, SPFolder folder, ProcessListItemDelegate processListItemDelegate)
at Nintex.Reporting.Collectors.WSS.NRSensorObjects.NRSite.UpdateUsers(DateTime lastModified)
at Nintex.Reporting.Collectors.WSS.Crawler.CrawlerSite.ProcessSite(DateTime storedSitesLastContentModifiedDate, NRSite nrSite)
at Nintex.Reporting.Collectors.WSS.Crawler.CrawlerSite.Start()
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