I haven't gotten any messages but it just doesn't show up. I double checked the game settings, looked in the mod files, added it manually into the mod files, and it still doesn't show up in some of my mod packs. I have opted to using a start up item mod to give myself the bare minimum number of lithium needed until I can manually produce them. I do that with some other mods that I don't want their ores cluttering my worlds, so it's not a huge issue but I did want to let you know about it.
Thank you. Sorry for the late response. I'm still getting used to actually using the discussions on the mod portal.