56.260 Mods to disable:Failed to load mods: __SchallAlienTech__/data.lua:10: __SchallAlienTech__/prototypes/armor.lua:1: attempt to index field 'player' (a nil value)
stack traceback:
        __SchallAlienTech__/prototypes/armor.lua:1: in main chunk
        [C]: in function 'require'
        __SchallAlienTech__/data.lua:10: in main chunk
stack traceback:
        [C]: in function 'require'
        __SchallAlienTech__/data.lua:10: in main chunk

Do what factorio patch notes and this error message tell you: replace 'player' by 'character' in armor.lua.
SchallArmouredTrain_0.17.2.zip and SchallTankPlatoon_0.17.4.zip also require small fixes after game patch release.

Should be fixed in recent version 0.17.5.

PS: Please understand that not every modder is 24/7 ready for modding. Modding is only one part of my life. Usually weekend is my family time. I had neither the time nor mood to sit in front of computer to do the modding, although it may seems trivial to fix the mods. We may not be even staying at home. In that case, all I can do is to read messages and do some simple replies.
Like the past version 0.17.23 about contiguous levels and likely in the future also, I cannot respond quickly to these mod-breaking game version released on Thursdays and Fridays. I can only work on updates starting from Mondays.

Like the past version 0.17.23 about contiguous levels and likely in the future also, I cannot respond quickly to these mod-breaking game version released on Thursdays and Fridays. I can only work on updates starting from Mondays.

All good, thanks for that! :-)

Thanks for what you do here, Schall! Those of us who don't know how to fix it ourselves will just stick with an older version for now.

The recent version 0.17.5 should have already fixed it. Please try!
This update (also for my other mods) should work with game versions 0.17.35 to 0.17.38.