Different Python error message. The ones about the AI tech tree and add unit get really annoying, but this one popped up when I completed the second level of the alter of L
Code:
File "CvEventInterface", line 25, in onEvent
File "CvEventManager", line 187, in handleEvent
File "CvModEvents", line 117, in on BuildingBuilt
AttributeError: 'CyCity' object has no attribute 'setHasRealBuilding'