Welcome to the UNOFFICIAL releases of XMLSpawner for newer versions of RunUO 2.1 and up. I myself take NO credit in fixing these, just finding and posting maintaining workable versions that compile. RunUO 2.1 fix by shrundowr source: http://www.runuo.com/community/threads/runuo-2-1-xmlspawner.472301/#post-3681885 Runuo 2.2 fix by Orbsydia OFFICIAL FORUMS AT: http://xmlspawner.15.forumer.com/ SVN versions not entirely supported! NOTE: By running the 2.1 verion on a production server, it failed as they had switched the spawning interface so if 2.1 doesn't compile on your 2.1 server, please try version 2.2 on your 2.1 server. If it does compile with 2.1 then leave it and enjoy!