Failed to find infantry_legs

i have an demo version an whenever i change something in unit_modules.csv

the game crashes with this error

The only thing that i have done was:
copy the line with whole line with light pulse lasers
inserted in under it renamed GUI name and ingame name to HDD and hdd
tweaked the range damage
an thats it what i am \doing wrong??

it sounds like when you save the file, it is not being saved in the right format. Make sure it is a plain csv file and not any kind of excel or similar format.

problem solved… it was exel doing something when i was saving changes… now i m using notepad and all is fine… thanks:)