Thank you dude, I will try and see if it works !
EDIT :
I deleted the mod that had a conflict with IC2 and now i got this :
"Forge Mod Loader has found a problem with your installation
The mod and versions listed below could not be found
eng_toolbox : any
The file Forge Mod-Loader-Client-0.log contains more informations"
Hi guys,
I recently downloaded and installed IC2 1.118.401 for minecraft 1.6.2 with an installer made by Skydaz. Everything was running perfectly before I installed it, but now it crashes everytime i try to launch the game
Here's the crash report :
---- Minecraft Crash Report ----
// Don't do that.
Time: 03/11/14 18:45
Description: There was a severe problem during mod loading that has caused the game to fail
cpw.mods.fml.common.LoaderException: java.lang.NoSuchMethodError: ic2.api.recipe.IMachineRecipeManager.addRecipe(Lnet/minecraft/item/ItemStack;Ljava/lang/Object; )V
at cpw.mods.fml.common.LoadController.transition(LoadController.java:149)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:181)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:471)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:806)
at net.minecraft.client.main.Main.main(SourceFile:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18 )
Caused by: java.lang.NoSuchMethodError: ic2.api.recipe.IMachineRecipeManager.addRecipe(Lnet/minecraft/item/ItemStack;Ljava/lang/Object; )V
at ic2.core.IC2.load(IC2.java:826)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:194)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:105)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:520)
... 10 more
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- System Details --
Details:
Minecraft Version: 1.6.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 126930768 bytes (121 MB) / 440926208 bytes (420 MB) up to 954728448 bytes (910 MB)
JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v8.04 FML v6.2.62.871 Minecraft Forge 9.10.1.871 24 mods loaded, 24 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized
FML{6.2.62.871} [Forge Mod Loader] (minecraftforge-9.10.1.871.jar) Unloaded->Constructed->Pre-initialized
Forge{9.10.1.871} [Minecraft Forge] (minecraftforge-9.10.1.871.jar) Unloaded->Constructed->Pre-initialized
CodeChickenCore{0.9.0.3} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Core{4.0.1} [BuildCraft] (buildcraft-A-4.0.1.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Builders{4.0.1} [BC Builders] (buildcraft-A-4.0.1.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Energy{4.0.1} [BC Energy] (buildcraft-A-4.0.1.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Factory{4.0.1} [BC Factory] (buildcraft-A-4.0.1.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Transport{4.0.1} [BC Transport] (buildcraft-A-4.0.1.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Silicon{4.0.1} [BC Silicon] (buildcraft-A-4.0.1.jar) Unloaded->Constructed->Pre-initialized
emashercore{1.2.1.2} [Emasher Resource] (EmasherResource-1.2.1.2.zip) Unloaded->Constructed->Pre-initialized
emasherdefense{1.2.1.0} [Defense] (Defense-1.2.1.0.zip) Unloaded->Constructed->Pre-initialized
eng_toolbox{1.1.4.0} [Engineer's Toolbox] (EngineersToolbox-1.1.4.0.zip) Unloaded->Constructed->Pre-initialized
ForgeMultipart{1.0.0.144} [Forge Multipart] (ForgeMultipart-universal-1.6.2-1.0.0.144.jar) Unloaded->Constructed->Pre-initialized
McMultipart{1.0.0.144} [Minecraft Multipart Plugin] (ForgeMultipart-universal-1.6.2-1.0.0.144.jar) Unloaded->Constructed->Pre-initialized
gascraft{2.0.1.0} [GasCraft] (GasCraft-2.0.1.0.zip) Unloaded->Constructed->Pre-initialized
mod_YMTLib{162v3} [mod_YMTLib] (YMTLib_162v3.zip) Unloaded->Constructed->Pre-initialized
mod_HariboteAirCraft{162v3 helios} [mod_HariboteAirCraft] (HariboteAirCraft_162v3.zip) Unloaded->Constructed->Pre-initialized
IC2{1.118.401-lf} [IndustrialCraft 2] (industrialcraft-2_1.118.401-lf.jar) Unloaded->Constructed->Errored
mod_UgoCraft{MC1.6.2-2.0.0} [mod_UgoCraft] (UgoCraft_Client_MC1.6.2-2.0.0.zip) Unloaded->Constructed->Pre-initialized
WR-CBE|Core{1.4.0.4} [WR-CBE Core] (WR-CBE-1.4.0.4.jar) Unloaded->Constructed->Pre-initialized
WR-CBE|Addons{1.4.0.4} [WR-CBE Addons] (WR-CBE-1.4.0.4.jar) Unloaded->Constructed->Pre-initialized
WR-CBE|Logic{1.4.0.4} [WR-CBE Logic] (WR-CBE-1.4.0.4.jar) Unloaded->Constructed->Pre-initialized
ForgeMicroblock{1.0.0.144} [Forge Microblocks] (ForgeMultipart-universal-1.6.2-1.0.0.144.jar) Unloaded->Constructed->Pre-initialized
Forge version : Forge9.10.1.871
Industrial craft version : Industrialcraft-2_1.118.401
Minecraft version : Minecraft 1.6.2
Thank you !
PS : Sorry for my bad english, I'm not from an english-speaking country 
