Porting a Mod to Rome Remastered
The files used in the mod currently need to be compatible with the game version the mod will be played on. E.g. if the mod is to be played on the Barbarian Invasion game, then it needs to contain the same internal faction names, or include ALL the files that mention faction names.
Before trying to get your actual mod into RR try setting up a new modfolder copying in the map files from BI and make a small change e.g. to the playable/non-playable list of factions so you can see if that change has worked and game will load.
Temporary issues with Barbarian Invasion
Using Barbarian Invasion currently gives a -show_err messages on exit about wardogs, and then hounds, these can mask other more useful messages, to fix this (until Feral do), include a version of the RR descr_animals.txt file with the following sections added, these are just duplicates of the existing entries with the plural name:
type wardogs class wardog model wardog radius 0.75 x_radius 0.35 height 1.0 width 1.7 offset 1.0 mass 1.0 type hounds class hound model hound radius 0.75 x_radius 0.35 height 1.0 width 1.7 offset 1.0 mass 1.0
After these you get an error about line 15689 in bi/data/export_descr_character_traits.txt, copy that file into the mod folder and comment out the trigger referencing the Law building type.
After fixing those issues you should start to get -show_err messages about problems in your mod (if you have any)