hiddensnowball

SO I have been working on this modpack for some time. ive almost got it. BUT. everytime i try to launch it with technic launcher it says "missing required version of CodingLib. do you want to download?" and so if i select "yes" it goes to a blank screen and then just reopens technic launcher. Am i missing a core? and someone help me find the core i am missing if so? Ive gone back and forth and cant seem to find what i am missing. btw the way the name of the modpack is TacticAcid