mickelus
commented
9 years ago This is not an issue with forge multipart.
You have to run vanilla minecraft release 1.8 at least once before you run the forge installer. Here's a guide on how to change your minecraft version: https://help.mojang.com/customer/portal/articles/1475923-changing-game-versions
So I'm trying to download Minecraft Forge and I skip the ad for adf.ly and were it pops up at the bottom of your screen and says open or save and stuff like that I click open and I do what you are supposed to do then it says I need to run 1.8 at least once and I have Minecraft open so I don't understand what it means. Please help?