openblock mod needs a coremod called openmodlib and some of the jar files look funky to me. make sure all the mods are up to date with ur forge and make sure that you download them at reputable site. and carefully read the install directions for the mod. i had trouble with that when i was making my modpack. i also tried every mod one at a time as i added them to my mods folder to make sure everything was compatible. its a slow process but i learned alot about which mods dont fit well together. hehe Good Luck. Cant wait to play ur pack!!
gumygum62 got a reaction from AlexPyro in Help Modpack Won't Open