Factorio Forums

today i loaded up steam, found that my factorio had uninstalled itself so i renistalled it. launched the game and then i got the error message
"Error in assignID, item-subgroup with name 'fill-barrel' does not exist.
Please can someone help, i have nearly 300 hours in factorio and it is my favourite game at the minute

Sounds like a mod error maybe? Rename your mod folder to something else..really anything "ModsBKP" maybe. Launch the game and see what happens.