Please help, I’m having so much trouble getting Forge to work. I don’t know what I’m doing wrong. I’m trying version 10.12.2.1147, I downloaded the version that said it was for Universal and clicked install client.
I've heard a lot of people having trouble with Forge 1.7.10 so it might just be that it's buggy. Sounds like you're doing all the right things. I would suggest deleting that version and trying the one on the Forge site that's called 'Forge 1.7.10 - Recommended' (the one you have is 1.7.10 - Latest).
If that doesn't work, try the one that says it's for Windows rather than the Universal one.
That worked, thanks so much!