[Slick]

Originally posted by Imperator Fyron:
I think that you do not get the error if you add a facility with a higher value for the ability. Build a Medical Lab. It gives 1% happiness. I do not think the game complains if you add an Urban Pacification Center II or III, because it gives a higher bonus. I may be wrong though, I haven't tested it in a while.

You do get the error, just happened to me yesterday. Happens any time you duplicate a system-wide ability.

Slick.