Error at launch with Factorio experimental version 2.1.9. Game will not load with mod enabled.

Failed to load mods: ScalingScienceCounts/data-final-fixes.lua:12: attempt to perform arithmetic on field '?' (a nil value)
stack traceback:
ScalingScienceCounts/data-final-fixes.lua:12: in main chunk

Still loads for me, on 2.1.9. Must be an interaction with another mod. See if you can narrow down which one it is, and I'll look into the cause.

Very odd...seems to break with Even Distribution installed.

https://mods.factorio.com/mod/even-distribution

Well, that was an easy fix. Even Distribution adds a tech that has no ingredients, which was messing up the calculation I do for the cost multiplier. Added a check for empty ingredients in 1.1.1.