that error is almost 3 weeks old and im pretty sure it was already fixed.
The error happens with Factorio 1.0, which still is the stable version. It happens when Alien Life is active. Perhaps it's solved for Factorio 1.1 -- don't know, I couldn't test this because in 1.1 I get the following crash:
12.848 Mods to disable:Failed to load mods: Error in assignID: item with name 'silicon' does not exist.
Source: mold (recipe).
Mods to be disabled:
• pyalienlife (1.9.13)
By the way, I've just got bitten by this bug while I was testing the next release of Bio Industries. We support both the stable and the experimental branch of Factorio. (In case you wonder why: The latest double release was just 3 days ago, and the version for Factorio 0.18/1.0 has been downloaded 1.5 times more than the version for Factorio 1.1 -- 767 vs. 513 times, as of right now. For me, that's a good enough reason to be compatible with stable Factorio.)
and its not supposed to have a dependency on pyhightech or it already would have one.
To be honest, I never played with any of the Py mods yet (mostly because I haven't played at all in the past 6+ months), so I don't know how the individual mods are supposed to work together. However, I do know that I've got the crash, that I've dug around for what caused it, and that the crash didn't happen anymore once I installed pyhightech. So I think it may be worthwhile to have another look at it -- mistakes happen! (Just found a new bug in BI that pops up in some situations because I've moved some recipe unlocks around.)
