This mod takes 'dorfl' https://mods.factorio.com/mod/logiquipment mod and extends it to include the cargo wagon entity, for those of us who want construction trains.
Error message: Failed to load mods: Error while running setup for entity prototype "EquipmentGridLogisticsModule-requester" (logistic-container): Entity must be minable when next_upgrade is set.
Mods to be disabled:
(EGLM and any of space exploration or squeak through I'm trying to use it with)
After further investigation it seems like the culprit may be that I removed the incompatibility of vehicle grid with krastorio 2 and tried to add it. It's just strange that the error message wouldn't reference K2 or vehicle grid.
Looks like this still happens, but I've narrowed the reason down to the larger logistics chests from Bob's Logistics, and it only happens when EGLM, Bob's Logistics, and Vehicle Grid are loaded together.
Tested with only those 3.