Launcher : Magic Launcher
Mods: Forge, Little Blocks - Slim Void Lib
I play only Single Player.
Still yesterday i used version 1.4.7 and all was fin. Today i updated to Version 1.5.2 with alle lates Versions for the mods. If I start a New Wolrd all things work. But if i load a save game from 1.4.7 : Forge mod Loader mismatched id between world and game. It starts with id 1 and go up....
http://paste.minecraftforge.net/view/a6eff714
I have no idea to do.
If any information not correct, i will try to answer it.
Thanks for help.