ERROR: BIFF [.\DATA\AREA030A.BIF] cannot be loaded: Unix.Unix_error(20, "stat", ".\\DATA\\AREA030A.BIF")
ERROR locating resource for 'COPY'
Resource [AM0310.wav] not found in KEY file:
[./chitin.key]
Stopping installation because of error.
Stopping installation because of error.
ERROR Installing [Northern Tales of the Sword Coast (NTotSC) for BGT-Weidu, BG:EE, and EET], rolling back to previous state
I've looked in the data directory and the area030a.bif is there, but I definitely cannot find the am0310.wav file. I'll include the debug file here

yet. I'm actually doing it manually because I find I have trouble getting big world picture or big world setup to work properly these days.
I've been folowing the Big World Project readme guide 19.2 for the install order.