Thread:Extension talk:Realnames/Realnames 0.3 2011-11-05 fails on MW 1.18/reply

I'm not exactly sure if I fixed your problem, but could you please try 0.3.1 and let me know? I finally got my environment back up, and I've got it working on all wiki version back to 1.15.x

If it doesn't fix it, could you please give me the new error message/line num, as well as what version of PHP you are running?

Thanks for reporting the problem! I'll get it fixed ASAP either way.