I got this error when starting Factorio with Krastorio 2 installed:
25.738 Loading mod more-defenders 1.1.0 (data-final-fixes.lua)
25.755 Error ModManager.cpp:1558: Failed to load mod "more-defenders": more-defenders/compatibility/krastorio2.lua:48: attempt to index local 'imersite_weapons' (a nil value)
stack traceback:
more-defenders/compatibility/krastorio2.lua:48: in main chunk
[C]: in function 'require'
more-defenders/data-final-fixes.lua:2: in main chunk
25.758 Loading mod core 0.0.0 (data.lua)
25.952 Checksum for core: 1476961332
26.117 Error ModManager.cpp:1558: Error in assignID: recipe-category with name 'crafting' does not exist.

Which other mods do you have installed? I though I covered everything that messed with that.

To be a bit more specific I need to know which tech unlocks Imersite Magazines and also which mod changes that.