Also, you should check my thread on the balanced Building - Upgrade system as I updated most of the unique improvement expansion mods to be balanced with the game.
Buildings - Upgrade System (v 12)
Classical Building Pack (v 4)
Industrial Building Pack (v 2)
Terrain - Brazilwood Camp Extension (v 3)
Terrain - Kasbah Extension (v 3)
Terrain - Moai Extension (v 3)
All works fine.
When I try to add Terrain - Polder Extension (v 3) or Terrain - Terrace Farm Extension (v 3) there is a very strange problem : I can make a save but when I try to reload it I can't because it says that some mods are missing.
I'm playing with CP/CBP so each time I want to reload I reload all the mods.