Afforess
The White Wizard
Look back at your BuildingClassInfos. See if you can spot it. 

It is the default building. I don't have palace listed in mine. The one you are citing was just when we were cleaning up the files, not editing them. Look at post #4.
Thanks NBAfan.
I do however have a request for a future AND Tutorial, could you do a tutorial on how to make your own Civic like you did for the military civic or the ideology civic? I would really like to make a Garbage Civic, but I have no idea how to do that.
Water Pipes
Cost: 60
Unhealthy: +2
Requires: Canal System, Civil Service
Req Resources: Pottery OR Copper OR Lead OR Iron OR Aluminum OR Steel
Obsolete: -
Special Abilities
- 15% Maintenance
- +1 Health with Public Works.
- Provides Fresh Water
- Hamlet, Cottages, Villages, Towns +1 Gold
- Given for FREE by "Department of Water"
- +1 Production with Cement Resource
- +1 Unhealthy with Lead Resource
- +1 Unhealthy with Iron Resource
- +1 Health with Chemicals
- +1 Health with Plastics Tech
- +1 Health with Nanotubes Resource
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Department of Water [National Project]
Cost: 600
Requires: Canal System, Civil Service
Obsolete: -
Special Abilities
- 25% Maintenance
- Gives FREE "Water Pipes" to every city.
- +25% Production Speed with Public Works
At the moment, there is no way to make buildings give increased yield to different tiles.
For the production boost with public works, look at the civic files in the Better RoM folder, I use some of those modifiers there. However, since they are new tags, you will need to use the Better RoM schema file too.
For the boost to city growth look at the Modder's Guide or the example folder, both have that one listed.
As for a boost to city growth with a terrain in the vicinity, you are going to need to improvise, there is no XML tag that will work for that. You could require hills or coast, and give a boost separately, but not together.
@Afforess
Ok I seem to have 3 errors that I can't seem to fix.
1.The text name for the Fire Hydrant will not show up.
2. It says I have a problem with TECH_REPLACEABLE_PARTS even though i looked it up and saw that is what the techs name was.
3. It says I have a problem with TECH_FIREFIGHTING even though I looked it up and saw that is what the techs name was.
Please help.(See Attachment)