Roaming Species/Map Errors

[MelTC]

So if I post the contents of tonight's error log, can someone help me work out a) if this is one error or a bunch of errors b) roughly where I messed up to cause this and c) what I need to do to fix it?

Exception: NameError
Message: uninitialized constant RoamingSpecies
PField_RoamingPokemon:50:in `pbRoamPokemon'
PField_RoamingPokemon:98
PField_RoamingPokemon:93:in `call'
Event:54:in `trigger'
Event:49:in `each'
Event:49:in `trigger'
PField_MapFactory:202:in `setMapChanged'
PField_MapFactory:180:in `setup'
PField_MapFactory:145:in `initialize'
PScreen_Load:425:in `new'

Like, scrolling through the PField_RoamingPokemon bit shows me where I think the problems are (lots of little red #s scattered about) but I'm not sure if they're the cause or the symptom.

And I can't even find this uninitialized constant. According to google it means something isn't capitalized right but I've gone over everything I've changed a few times and I'm pretty sure everything is?

Basically, I've worked out that it's something to do with maps, and might be down to my deleting all the default maps (minus Intro) to start with a clean slate. But will it fix itself if I just copy the old maps back in for now or have I messed things up big time?

 

[Maruno]

The RoamingSpecies array should be in the script section Settings. Maybe you accidentally deleted it.

 

[MelTC]

Closer to the opposite - it was blank and on the instructions of https://pokemonessentials.wikia.com/wiki/Tutorial:Creating_a_new_Game I added

RoamingAreas = {}
RoamingSpecies = []

Unfortunately removing those lines again didn't solve the error - it came up again unchanged. I did wonder if I needed to put some data in one/both sets of bracket but the tutorial said we'd 'get to that later' so I assumed it would be fine ...