Need Help Adding a Province

[The Panda Centurion]

I have followed the instructions in Burebista's (Callatian's) tutorial on making new provinces, in the official RTW Modding Forums, to the letter, and have attempted to add a new province in northern Britain (Caledonia). However, whenever i attempt to enter the campaign, the screen reverts to the main menu, and when i thereafter quit, a window appears saying that the error occured at "line 2879, column 12 of descr_strat.txt".

This is the context of that line, the entry in descr_strat.txt of my new province:
____________________________________________________________
settlement
{
level town
region Caledonia

year_founded 0
population 800
settlement_tax 51
plan_set default_set
faction_creator gauls
building
{
type core_building governors_house
}
building
{
type barracks muster_field
}
}
____________________________________________________________
And this is line 2879 (the "e" in Caledonia is in column 12):

region Caledonia

____________________________________________________________
For some reason, the game insists that something is wrong with the "e" of Caledonia, even though i have checked and double-checked and triple-checked the other associated text files.... If someone can help me, please do.


PS:
Here are my entries in the other two text files:
____________________________________________________________
In descr_regions.txt:

Caledonia
Dalriada
britons
Brigantes
66 124 23
lead, dogs, pigs
5
4
____________________________________________________________
And in imperial_campaign_regions_and_settlement_names.txt:

{Caledonia} Caledonia
{Dalriada} Dalriada


- Panda