I made my own modpack in 1.7.10 by placing about 29 mods in forge. I had all the required coremods but then when I opened MC I got this message:
Forge Mod Loader has found a problem with your minecraft installation. The mods and versions listed below could not be found:
Forge : minimum version required is 10.13.3.1360
Please help if possible!
Hero's Destiny! A WIP mod coming soon!
SciTech! An amazing WIP technology mod that lets you tamper with RADIOACTIVE substances!
Go download the latest version of forge
Thanks guys! Fixed the problem! Turns out I had Gany's Nether for 1.8 so problem solved! Having fun with modpack!