I was getting this error since mod got uploaded and just waited for a fix... But it seems like i am the only one getting this crash. Couldn't figure this out myself.

Failed to load mods: crushing-industry-tweaks/prototypes/compat/k2so.lua:183: attempt to index local 'recipe' (a nil value)
stack traceback:
crushing-industry-tweaks/prototypes/compat/k2so.lua:183: in main chunk
[C]: in function 'require'
crushing-industry-tweaks/data-final-fixes.lua:2: in main chunk

I'm not into modding and bug reports. Any useful logs factorio makes on crash?

From Dependencies i have:
k2so
nulls-k2so-tweaks
molten-plastic
early_recycling

Thanks for the report.
I'll look for a fix.
Until then, you can use the following workaround: in the mod settings, you can disable the option ‘Add missing Krastorio2 Space Out recipes’.

What other mods do you have that modify k2so or make changes in general?

Thanks for the report.
I'll look for a fix.
Until then, you can use the following workaround: in the mod settings, you can disable the option ‘Add missing Krastorio2 Space Out recipes’.

I can't enable mod even with changed setting.

What other mods do you have that modify k2so or make changes in general?

Low chance:
https://mods.factorio.com/mod/metal-and-stars
https://mods.factorio.com/mod/ev-machines
https://mods.factorio.com/mod/ev-mining-drills
https://mods.factorio.com/mod/More-Asteroids
https://mods.factorio.com/mod/More-Asteroids-Reprocessing

A little more:
https://mods.factorio.com/mod/zzz-cat-patcher
https://mods.factorio.com/mod/foundry-expanded
https://mods.factorio.com/mod/Fundryu

And mods mentioning k2so in dependencies as needed:
https://mods.factorio.com/mod/k2so-thruster-fix
https://mods.factorio.com/mod/xy-k2so-enhancements
https://mods.factorio.com/mod/Imersite-Asteroids
https://mods.factorio.com/mod/k2-spaced-out-tier4_modules-support

As optional:
https://mods.factorio.com/mod/ev-refining
https://mods.factorio.com/mod/Bio_Industries_2
https://mods.factorio.com/mod/black-rubber-belts-remastered

Hope i didn't miss something.

I checked out the mods, but couldn't find anywhere that changes the k2so recipe I was looking for. So I can't really make a correct bug fix. But I did add an existence check in the current 1.3.1 version. The missing recipe won't cause it to crash anymore.

Version: 1.3.1
Date: 08.02.2026
Bugfixes:
- K2SO: Now adding missing chrushing recipes onyl if origin K2SO recipes exists.

Works for now, thanks.