Lancement du jeu a partir de mon launcher

Bonjour,
J'ai actuellement un souci avec mon launcher c'est une version Minecraft Forge 1.7.10-10.13.3.1395-1710ls.
Il se ferme puis le jeu ne se lance pas et j'ai ceci en erreur.

Code (cpp):

---- Minecraft Crash Report ----
// But it works on my machine.

Time: 01/05/15 16:20
Description: Initializing game

java.lang.NullPointerException: Initializing game
    at net.minecraft.client.Minecraft.func_152340_a(Minecraft.java:638)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:421)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878)
    at net.minecraft.client.main.Main.main(SourceFile:148)
    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:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
    at net.minecraft.client.Minecraft.func_152340_a(Minecraft.java:638)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:421)

-- Initialization --
Details:
Stacktrace:
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:878)
    at net.minecraft.client.main.Main.main(SourceFile:148)
    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:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
    Minecraft Version: 1.7.10
    Operating System: Windows 7 (amd64) version 6.1
    Java Version: 1.7.0_71, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 329435936 bytes (314 MB) / 650641408 bytes (620 MB) up to 954728448 bytes (910 MB)
    JVM Flags: 2 total; -Xms512M -Xmx1024M
    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML:
    Launched Version: 1.7.10
    LWJGL: 2.9.1
    OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
    GL Caps:
    Is Modded: Definitely; Client brand changed to 'fml,forge'
    Type: Client (map_client.txt)
    Resource Packs: []
    Current Language: ~~ERROR~~ NullPointerException: null
    Profiler Position: N/A (disabled)
    Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    Anisotropic Filtering: Off (1)

Merci d'avance pour votre aide.