I'm playing on Factorio 2.1 and trying to use Bob's Power together with Krastorio 2, but the game crashes during the data loading phase.
Here is the exact error message:
Error while running setup for entity prototype "bob-substation-2" (electric-pole): next_upgrade target (kr-superior-substation) must have the same fast_replaceable_group (substation != electric-pole).
It seems the problem is in the fast_replaceable_group parameter. In Bob's Power, bob-substation-2 is assigned the group "electric-pole", while Krastorio 2 assigns the group "substation" to its upgraded substation (kr-superior-substation). Because these groups don't match, the game cannot link them for fast replacement and crashes.