Factorio Forums

Posted: **Sun Dec 28, 2025 3:47 am**

Hello. I have a problem. When trying to integrate transport belts from the UltimateBeltsSpaceAge mod with the SE mod, I get the error:

Error while running setup for entity prototype "ultra-express-belt" (transport-belt): next_upgrade target (extreme-express-belt) must have the same collision mask.

I don't know where to look to fix this. All I do, is add:

Code: Select all

data.raw["transport-belt"]["extreme-express-belt"].se_allow_in_space = true

and I keep getting this error. I tried to see what was happening with the addon during boot. Does it see the data? Judging by the log, it does.
addon:

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if mods["UltimateBeltsSpaceAge"] then
log("[TEST] The code is running as expected")
if data.raw["transport-belt"]["extreme-express-belt"] then
log("[TEST] Found the entity prototype")
else
log("[TEST] NOOO! COULD NOT FIND THE PROTOTYPE!")
end
end

log:

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1.418 Script @__Space_Stuff__/data-updates.lua:2: [TEST] The code is running as expected
1.418 Script @__Space_Stuff__/data-updates.lua:4: [TEST] Found the entity prototype

But if i add aftter log("TEST Found the entity prototype")

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data.raw["transport-belt"]["extreme-express-belt"].se_allow_in_space = true

I get an error. Please help me solved this error. Thanks!

Posted: **Sun Dec 28, 2025 10:43 am**

The problem was solved. It was necessary to specify the prototypes from the very first, vanilla, belt, to the very last one in the chain.

Code: Select all

data.raw["transport-belt"]["transport-belt"].se_allow_in_space = true
data.raw["transport-belt"]["fast-transport-belt"].se_allow_in_space = true
data.raw["transport-belt"]["express-transport-belt"].se_allow_in_space = true
data.raw["transport-belt"]["ultra-fast-belt"].se_allow_in_space = true
data.raw["transport-belt"]["extreme-fast-belt"].se_allow_in_space = true
data.raw["transport-belt"]["ultra-express-belt"].se_allow_in_space = true
data.raw["transport-belt"]["extreme-express-belt"].se_allow_in_space = true
data.raw["transport-belt"]["ultimate-belt"].se_allow_in_space = true

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