Thank you for the reply This should be more visible on the first page, alse in the Description of the mod ingame there is mentioned you need 12 or higher.
just wanted to check out your mod but i get the following error for version 0.7 / 0.8 and 0.9 on Factorio 0.12.35-0. Is this intended and the mod only will support the beta build 1.13 with this versions and the included fixes? I do not have installed any other mods.