Thanks. It automatically showed up in the drop down menu to select the build in the launcher and when I clicked play it asked if I want to update. Do I still need to click yes to update or not? I just know when I click yes it will remove all the mods I had loaded into the mods folder and reset it back to vanilla.
Nevermind answered my own question when I opened without updating it still gave me the same error. So I just made a copy of the mods folder so I can add them all back in easily.
Hazmatik's post in Please Help - BareBonesPack was marked as the answer