Attached Link: http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2724430

The linked thread had the same error reported, using a different script. The error has something to do with an incorrectly installed tcl/tk library.

The issue may have nothing to do with the realism kit, per se.

---

Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)