Failed to load mods: X100_assembler/data-final-fixes.lua:173: X100_assembler/script/functions.lua:190: attempt to index field '?' (a nil value)
stack traceback:
X100_assembler/script/functions.lua:190: in function 'make_100'
X100_assembler/script/X100.lua:117: in main chunk
[C]: in function 'require'
X100_assembler/data-final-fixes.lua:173: in main chunk
stack traceback:
[C]: in function 'require'
X100_assembler/data-final-fixes.lua:173: in main chunk

I need more info:
full log file you can send it HERE
OR
mod list

It happens when loading Assembler UPSGrade and X100 together.

I'll shoot you a log shorly.

Log Sent