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I'm clearly over my head...can't seem to get the Traincraft Mod to run...I've loaded Minecraft 1.6.4 with Forge and I've changed the Java environment back to 7u67 in the profile. The Mojang splash screen comes up and then that's it. I've included the crash report below if that helps. HELP!!! Thanks

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 12/28/14 5:53 PM
Description: Initializing game

java.lang.NullPointerException
at net.minecraft.client.resources.LanguageManager.func_135044_b(LanguageManager.java:96)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:478)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:808)
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:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
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 magic.launcher.Launcher.main(SourceFile:207)


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

-- Head --
Stacktrace:
at net.minecraft.client.resources.LanguageManager.func_135044_b(LanguageManager.java:96)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:478)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:808)
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:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
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 magic.launcher.Launcher.main(SourceFile:207)

-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 334740632 bytes (319 MB) / 487587840 bytes (465 MB) up to 487587840 bytes (465 MB)
JVM Flags: 3 total; -Xms512m -Xmx512m -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
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 v8.11 FML v6.4.49.965 Minecraft Forge 9.11.1.965 4 mods loaded, 4 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized
FML{6.4.49.965} [Forge Mod Loader] (minecraftforge-9.11.1.965.jar) Unloaded->Constructed->Pre-initialized
Forge{9.11.1.965} [Minecraft Forge] (minecraftforge-9.11.1.965.jar) Unloaded->Constructed->Pre-initialized
TC{4.2.1_012} [Traincraft] (traincraft-4.2.1_011.jar) Unloaded->Constructed->Pre-initialized
Launched Version: 1.6.4-Forge9.11.1.965
LWJGL: 2.9.0
OpenGL: Intel(R) HD Graphics GL version 4.3.0 - Build 10.18.10.3871, Intel
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Pack: Default
Current Language: ~~ERROR~~ NullPointerException: null
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

try to update your graphics card drivers.