I'm creating a modpack for our server's upgrade to MC 1.7.10 and have been testing mods in a single player modpack.

The server is a cauldron server using forge version 1231.

I need to update the client to forge 1231 at least but when i have tried the client crashes with this error. Is this a problem with applecore or the spice of life mod?

http://pastebin.com/hVHWd7Rg

I've tried some of your dev builds but always have the same crash.

Problem solved, seems as i was updating forge it wasn't updating it's own lib files. I did a fresh install and that solved the problem.