0.15.18 Tutorials crash with mods

[NosajDraw]

I posted on the mods discussion page that is generating this error, but I'm posting here as I'm guessing it might be a larger issue with mods interacting with the tutorials in unexpected ways.

To reproduce just down the mod https://mods.factorio.com/mods/ananyzyr ... hettiPhase

Code: Select all

Error while running the on_init: Error while running event level::on_research_finished (ID 18)
...on/.factorio/temp/currently-playing-tutorial/control.lua:19: attempt to index field '?' (a nil value)
stack traceback:
	__SkipSpaghettiPhase__/control.lua:5: in function <__SkipSpaghettiPhase__/control.lua:1>

[posila]

Hi, thanks for the report.
Even though it is possible for mod to remove something from the game that would prevent a tutorial to run correctly or at all, it is not the case of Skip Spaghetti Phase mod. Something else is going on there with migration firing events in scripts. Definitely worth further investigation.