Boujour a tous,
J'ai un probleme avec forge :
J'ai minecraft 1.5.2 et donc je veux forge 1.5.2
Je l'installe comme tout les tuto poster sur le net et pourtant apres avoir lancer mincraft le logo mogang apparais et ensuite mincraft crash ... ='(
Voila le message d'erreur:
Minecraft has crashed!
----------------------
Minecraft has stopped running because it encountered a problem; Failed to start game
A full error report has been saved to C:\Users\Utilisateur\AppData\Roaming\.minecraft\cr
ash-reports\crash-2013-06-17_20.53.46-client.txt
- Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash 
--- BEGIN ERROR REPORT 838bc01 --------
Full report at:
C:\Users\Utilisateur\AppData\Roaming\.minecraft\cr
ash-reports\crash-2013-06-17_20.53.46-client.txt
Please show that file to Mojang, NOT just this screen!
Generated 17/06/13 20:53
-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_22, Sun Microsystems Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 377218776 bytes (359 MB) / 648740864 bytes (618 MB) up to 954466304 bytes (910 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
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 v7.51 FML v5.2.2.684 Minecraft Forge 7.8.0.684 4 mods loaded, 4 mods active
mcp{7.44} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed
FML{5.2.2.684} [Forge Mod Loader] (coremods) Unloaded->Constructed
Forge{7.8.0.684} [Minecraft Forge] (coremods) Unloaded->Constructed
necromancy{0.4} [Necromancy] (necromancy) Unloaded->Errored
LWJGL: 2.4.2
OpenGL: GeForce 410M/PCI/SSE2 GL version 4.1.0, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
cpw.mods.fml.common.LoaderException: java.lang.ClassNotFoundException: necromancy.necromancy
at cpw.mods.fml.common.LoadController.transition(Load
Controller.java:142)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:51
3)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraf
tLoading(FMLClientHandler.java:160)
at net.minecraft.client.Minecraft.func_71384_a(Minecr
aft.java:410)
at net.minecraft.client.MinecraftAppletImpl.func_7138
4_a(SourceFile:56)
at net.minecraft.client.Minecraft.run(Minecraft.java:
732)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: necromancy.necromancy
at cpw.mods.fml.relauncher.RelaunchClassLoader.findCl
ass(RelaunchClassLoader.java:238)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at cpw.mods.fml.common.ModClassLoader.loadClass(ModCl
assLoader.java:56)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.constructMod(F
MLModContainer.java:425)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ
e
Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow
n
Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un
known
Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEven
t(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandle
r.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(Event
Bus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueued
Events(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.
java:267)
at cpw.mods.fml.common.LoadController.propogateStateM
essage(LoadController.java:165)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ
e
Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow
n
Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un
known
Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.common.eventbus.EventHandler.handleEven
t(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandle
r.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(Event
Bus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueued
Events(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.
java:267)
at cpw.mods.fml.common.LoadController.distributeState
Message(LoadController.java:98)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:50
3)
... 5 more
Caused by: java.lang.NullPointerException
at cpw.mods.fml.relauncher.RelaunchClassLoader.findCl
ass(RelaunchClassLoader.java:227)
... 32 more
--- END ERROR REPORT c832291f ----------
Merci de m'aider ^^ 
Il me semble pas que ça fasse de différence avec ou sans ! 
