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I'm getting the error message:
"Failed to laod mods: Error in assignID, technology with name 'electric-energy-accumulators' does not exist.
Source: personal-static-defense-equipment (technology).
Mods to be disabled:
appearently the "electric-energy-accumulators" is named "electric-energy-accumulators-1"
changing that in the technology and the upgrade-technology lua file fixes the problem
You updated to the 0.17.23 (0.17.5 of this mod) version, and are not on 0.17.23 of Factorio.
Not a bug, User error. :)
well, as already told, either keep both at the newest version, or none of them and keep both the old versions.