Hi there
I added this to lamp-post /prototypes/lamp-post.lua in L5-8 :
use_fast_replaceable_group = "lamp"
if mods["InlaidLampsExtended"] then
use_fast_replaceable_group = "lamps"
end
and then changed
fast_replaceable_group = "lamp",
to
fast_replaceable_group = use_fast_replaceable_group,
then Factorio starts. I have no idea however what the side effects might be... maybe this helps, though.