The following mods could not be loaded: Unknown collision mask "true"

Source: transport-drone-1 (unit).

+1

line 99
for k, layerTemp in pairs(layerTempList) do
if layerTemp ~= "true" and layerTemp ~= nil then
all_used_tile_collision_masks[layerTemp] = true
all_used_tile_collision_masks["roadtd"] = nil
end
end

changing line 99 to this fixed the error

line 99
for k, layerTemp in pairs(layerTempList) do
if layerTemp ~= "true" and layerTemp ~= nil then
all_used_tile_collision_masks[layerTemp] = true
all_used_tile_collision_masks["roadtd"] = nil
end
end

Didn't work for me, now I get this:

Error loading mod: Transport_Drones_Meglinge_Fork/data-final-fixes.lua:141: 'end' expected (to close 'for' at line 89) near <eof>

I not a modder btw, just trying a fix

Can you give me your archive from that time?