i tried to install build 304 of IC2 in my multimc intance, and it crashed. but in a clean instance, only with Ic2 and forge, it worked. i tryed to update forge, delete opifine, nothing helped.
multiMC console:
http://pastebin.com/tDSCKfUH
minecraft crash report:
http://pastebin.com/JDB022wb
mod list:
http://pastebin.com/d1RmkpxN