Hello, this error is displayed at load time without space-age loaded.
The 'steel-plate-productivity' technology is space-age only.
Have a nice day
Failed to load mods: ev-machines/prototypes/vanilla/recipe.lua:87: attempt to index field 'steel-plate-productivity' (a nil value)
stack traceback:
ev-machines/prototypes/vanilla/recipe.lua:87: in main chunk
[C]: in function 'require'
ev-machines/data.lua:11: in main chunk
