Cannot install forge 1.12.2

[snyderpretzel]

I have a MacBook and I have successfully downloaded the forge for 1.14 but I’m trying to do 1.12.2 and when I go to lead it like normal it stops and leaving me on “Unpacking packed files aka-actor_2.11-2.3.3.jar.pack.xz”. I really wanna be able to download this so I can get mods. I have already ran a vanilla world of the 1.12.2. I don’t know what else to do please someone help!! 

[Ugdhar]

1.12 is no longer supported due to age.

Please update to a modern version (1.14.4/1.15.2) to receive support.

 

More information on supported versions can be found in the LTS link at the top of every page.