Same thing happened to me. I don't know why, but it's saddening.
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\Matthew\AppData\Roaming\.technic\infamy-modern-warfare\crash-reports\crash-2013-10-20_13.39.31-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 24bf1649 --------
Full report at:
C:\Users\Matthew\AppData\Roaming\.technic\infamy-modern-warfare\crash-reports\crash-2013-10-20_13.39.31-client.txt
Please show that file to Mojang, NOT just this screen!
Generated 10/20/13 1:39 PM
-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot Client VM (mixed mode), Oracle Corporation
Memory: 56610344 bytes (53 MB) / 122978304 bytes (117 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1024m -XX:MaxPermSize=128m
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 v5.2.23.734 Minecraft Forge 7.8.0.734 67 mods loaded, 0 mods active
mcp{7.51} [Minecraft Coder Pack] (minecraft.jar)
FML{5.2.23.734} [Forge Mod Loader] (coremods)
Forge{7.8.0.734} [Minecraft Forge] (coremods)
CodeChickenCore{0.8.7.3} [CodeChicken Core] (coremods)
CodeChickenCore{0.8.7.3} [CodeChicken Core] (coremods)
CoFHFramework{1.5.2.5} [CoFH Framework] (coremods)
ImmibisMicroblocks{55.0.3} [immibis's Microblocks] (coremods)
NotEnoughItems{1.5.2.28} [Not Enough Items] (coremods)
PowerCrystalsCore{1.1.6} [PowerCrystals Core] (coremods)
CoFHCore{1.5.2.5} [CoFHCore] (CoFHCore-1.5.2.5.jar)
CoFHWorld{1.5.2.5} [CoFHWorld] (CoFHCore-1.5.2.5.jar)
CustomLAN{2.2} [Custom LAN Mod] (CustomPortForge.jar)
ImmibisMicroblocksInstallCheck{55.0.3} [immibis's Microblocks (Check for incorrect installation)] (immibis-microblocks-55.0.3.jar)
mod_ArmorStatusHUD{Not available} [mod_ArmorStatusHUD] ([1.5.2]ArmorStatusHUDv1.7.jar)
mod_bspkrsCore{Not available} [mod_bspkrsCore] ([1.5.2]bspkrsCorev2.07.jar)
DamageIndicatorsMod{2.6.8} [Damage Indicators] ([1.5.2]DamageIndicators v2.6.8.jar)
InfamyArmor{v0.5.1} [infamy: Utilities] ([1.5.2]Infamy Utilities-v0.5.1.jar)
NowCraftables{v0.1} [Now Craftables] ([1.5.2]NowCraftables-v-0.1.jar)
bau5_ProjectBench{1.7.4} [Project Bench] ([1.5.2]ProjectBench-v1.7.5.jar)
mod_ReiMinimap{Not available} [mod_ReiMinimap] ([1.5.2]ReiMinimap_v3.3_06.jar)
AnObsidianPlate{1.0} [An Obsidian Plate] (AnObsidianPlate-v1.1.jar)
AppliedEnergistics{rv12.b} [Applied Energistics] (appeng-rv12-b-mc15x.jar)
AssemblyLine{0.4.1.153} [Assembly Line] (AssemblyLine_v0.4.1.153.jar)
AtomicScience{0.6.1} [Atomic Science] (Atomic_Science_v0.6.1.80.jar)
Backpack{1.12.13} [backpack] (backpack-1.12.13-1.5.2.jar)
mod_BackTools{Not available} [mod_BackTools] (BackTools1.5.2v1.jar)
Fyrestorm_BorderlandsWeaponMod{0.0.8e} [The Borderlands Weapon Mod] (Borderlands Weapon Mod - Infamy.jar)
mod_BuffBarMod{0.7.1} [buff Bar Mod] (BuffBarv0.7.1.jar)
BuildCraft|Builders{3.7.2} [bC Builders] (buildcraft-A-3.7.2.jar)
BuildCraft|Core{3.7.2} [buildCraft] (buildcraft-A-3.7.2.jar)
BuildCraft|Energy{3.7.2} [bC Energy] (buildcraft-A-3.7.2.jar)
BuildCraft|Factory{3.7.2} [bC Factory] (buildcraft-A-3.7.2.jar)
BuildCraft|Silicon{3.7.2} [bC Silicon] (buildcraft-A-3.7.2.jar)
BuildCraft|Transport{3.7.2} [bC Transport] (buildcraft-A-3.7.2.jar)
mod_ChatBubbles{Not available} [mod_ChatBubbles] (ChatBubbles152_5049714.jar)
CCMicroblock{1.0.0.60} [Forge Microblocks] (ForgeMultipart-universal-1.5.2-1.0.0.60.jar)
CCMultipart{1.0.0.60} [Forge Multipart] (ForgeMultipart-universal-1.5.2-1.0.0.60.jar)
McMultipart{1.0.0.60} [Minecraft Multipart Plugin] (ForgeMultipart-universal-1.5.2-1.0.0.60.jar)
GunCus{1.5.2 BETA v6} [Gun Customization] (GunCus 1.5.2 BETA v6.1.jar)
GunCus2{1.5.2 BETA v6} [Gun Customization Addon] (GunCus 1.5.2 BETA v6.1.jar)
ICBM|Contraption{1.2.1} [iCBM|Contraption] (ICBM_Contraption_v1.2.1.172.jar)
ICBM|Explosion{1.2.1} [iCBM|Explosion] (ICBM_Explosion_v1.2.1.172.jar)
ICBM|Sentry{1.2.1} [iCBM|Sentry] (ICBM_Sentry_v1.2.1.172.jar)
ImmibisCore{55.1.1} [immibis Core] (immibis-core-55.1.1.jar)
inventorytweaks{1.54b} [inventory Tweaks] (InventoryTweaks-1.54b.jar)
IronChest{5.2.6.412} [iron Chest] (ironchest-universal-1.5.2-5.2.6.412.jar)
Mekanism{5.5.6} [Mekanism] (Mekanism-v5.5.6.124.jar)
MekanismGenerators{5.5.6} [MekanismGenerators] (MekanismGenerators-v5.5.6.124.jar)
MekanismTools{5.5.6} [MekanismTools] (MekanismTools-v5.5.6.124.jar)
minechem{@VERSION@} [MineChem] (MineChem_v3.0.0.253.jar)
ModularForceFieldSystem{2.3.0.1.28} [Modular ForceField System V2] (ModularForceFieldSystem-2.3.0.1.28.jar)
NEIAddons{1.8.1.r27} [NEI Addons] (neiaddons-1.5.2-1.8.1.r27.jar)
NEIAddons|AE{1.8.1.r27} [NEI Addons: Applied Energistics] (neiaddons-1.5.2-1.8.1.r27.jar)
NEIAddons|CraftingTables{1.8.1.r27} [NEI Addons: Crafting Tables] (neiaddons-1.5.2-1.8.1.r27.jar)
NEIAddons|ExtraBees{1.8.1.r27} [NEI Addons: Extra Bees] (neiaddons-1.5.2-1.8.1.r27.jar)
NEIAddons|Forestry{1.8.1.r27} [NEI Addons: Forestry] (neiaddons-1.5.2-1.8.1.r27.jar)
NEIAddons|MiscPeripherals{1.8.1.r27} [NEI Addons: Misc Peripherals] (neiaddons-1.5.2-1.8.1.r27.jar)
NEIPlugins{1.0.9.3} [NEI Plugins] (NEIPlugins-1.0.9.3.jar)
Railcraft{7.2.3.0} [Railcraft] (Railcraft_1.5.2-7.2.3.0.jar)
RopesPlus{1.4.0} [Ropes+] (RopePlus_1.5.2.jar)
SAP_Man{1.4.2} [sanAndreasPs Managers] (SAP_ManPack_v142.jar)
TStormFix{1.0} [Thunderstorm Fix] (SAP_ManPack_v142.jar)
secretroomsmod{4.6.0} [secretRoomsMod] (SecretRoomsMod-universal-4.6.0.283.jar)
pitman-87_TF2_Sentry{1.5.2} [TF2 Sentry] (TF2_Sentry_1.5.2b.jar)
ThermalExpansion{2.4.6.0} [Thermal Expansion] (ThermalExpansion-2.4.6.0.jar)
TurretMod3{3.0.1} [Turret Mod v3] (TurretMod_v3.0.1.jar)
weaponmod{1.5.2 v1.12.0} [balkon's WeaponMod] (WeaponMod.jar)
LWJGL: 2.9.0
OpenGL: Intel Bear Lake B GL version 1.4.0 - Build 8.14.10.1930, Intel
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
java.lang.IllegalArgumentException: duplicate key: CodeChickenCore
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:119)
at com.google.common.collect.RegularImmutableMap.<init>(RegularImmutableMap.java:67)
at com.google.common.collect.ImmutableMap$Builder.fromEntryList(ImmutableMap.java:249)
at com.google.common.collect.ImmutableMap$Builder.build(ImmutableMap.java:235)
at com.google.common.collect.Maps.uniqueIndex(Maps.java:1168)
at com.google.common.collect.Maps.uniqueIndex(Maps.java:1142)
at cpw.mods.fml.common.Loader.identifyMods(Loader.java:350)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:480)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:163)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:411)
at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
at net.minecraft.client.Minecraft.run(Minecraft.java:733)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT c99e00e3 ----------