Minecraft Crashed trying to enter FTB

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Santiago

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Jul 29, 2019
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This is the Crash Report:

---- Minecraft Crash Report ----
// Oh - I know what I did wrong!

Time: 18-02-13 09:33 PM
Description: Failed to start game

cpw.mods.fml.common.LoaderException: java.lang.ClassNotFoundException: invtweaks.InvTweaksMod
at cpw.mods.fml.common.LoadController.transition(LoadController.java:130)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:504)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:161)
at net.minecraft.client.Minecraft.a(Minecraft.java:410)
at asq.a(SourceFile:56)
at net.minecraft.client.Minecraft.run(Minecraft.java:744)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: invtweaks.InvTweaksMod
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:185)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at cpw.mods.fml.common.ModClassLoader.loadClass(ModClassLoader.java:57)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:418)
at sun.reflect.GeneratedMethodAccessor5.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:69)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
at com.google.common.eventbus.EventBus.post(EventBus.java:268)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:153)
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:69)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
at com.google.common.eventbus.EventBus.post(EventBus.java:268)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:86)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:494)
... 5 more
Caused by: java.lang.UnsupportedClassVersionError: invtweaks/InvTweaksMod : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:174)
... 31 more


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

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Windows 7 (x86) version 6.1
Java Version: 1.6.0_24, Sun Microsystems Inc.
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
Memory: 220609640 bytes (210 MB) / 266797056 bytes (254 MB) up to 1067057152 bytes (1017 MB)
JVM Flags: 5 total; -Xms256M -Xmx1024M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:+AggressiveOpts
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 v7.26a FML v4.7.32.553 Minecraft Forge 6.6.1.524 Feed The Beast Mod Pack 60 mods loaded, 60 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed
FML [Forge Mod Loader] (coremods) Unloaded->Constructed
Forge [Minecraft Forge] (coremods) Unloaded->Constructed
CodeChickenCore [CodeChicken Core] (coremods) Unloaded->Constructed
NotEnoughItems [Not Enough Items] (coremods) Unloaded->Constructed
BuildCraft|Core [BuildCraft] (buildcraft.jar) Unloaded->Constructed
CoFHCore [CoFH Core] (CoFHCore.zip) Unloaded->Constructed
ComputerCraft [ComputerCraft] (computercraft.zip) Unloaded->Constructed
CCTurtle [ComputerCraft Turtles] (computercraft.zip) Unloaded->Constructed
ThermalExpansion [Thermal Expansion] (thermalexpansion.zip) Unloaded->Constructed
OmniTools [OmniTools] (omnitools.zip) Unloaded->Constructed
IC2 [IndustrialCraft 2] (IC2.jar) Unloaded->Constructed
AdvancedMachines [IC2 Advanced Machines Addon] (advancedmachines.zip) Unloaded->Constructed
AdvancedSolarPanel [Advanced Solar Panels] (advancedsolarpanel.zip) Unloaded->Constructed
BuildCraft|Builders [BC Builders] (buildcraft.jar) Unloaded->Constructed
BuildCraft|Energy [BC Energy] (buildcraft.jar) Unloaded->Constructed
BuildCraft|Factory [BC Factory] (buildcraft.jar) Unloaded->Constructed
BuildCraft|Transport [BC Transport] (buildcraft.jar) Unloaded->Constructed
BuildCraft|Silicon [BC Silicon] (buildcraft.jar) Unloaded->Constructed
ChickenChunks [ChickenChunks] (chickenchunks.jar) Unloaded->Constructed
EnderStorage [EnderStorage] (enderstorage.jar) Unloaded->Constructed
ExtrabiomesXL [ExtrabiomesXL] (extrabiomes.jar) Unloaded->Constructed
Forestry [Forestry for Minecraft] (forestry.jar) Unloaded->Constructed
BinnieCore [Binnie Core] (extrabees.zip) Unloaded->Constructed
ExtraBees [Extra Bees] (extrabees.zip) Unloaded->Constructed
factorization [Factorization] (factorization.jar) Unloaded->Constructed
GraviSuite [Gravitation Suite] (gravisuite.zip) Unloaded->Constructed
Railcraft [Railcraft] (railcraft.jar) Unloaded->Constructed
RedPowerCore [RedPower] (redpowercore.zip) Unloaded->Constructed
RedPowerBase [RP Base] (redpowercore.zip) Unloaded->Constructed
RedPowerMachine [RP Machine] (redpowermechanical.zip) Unloaded->Constructed
RedPowerCompat [RP Compat] (redpowercompat.zip) Unloaded->Constructed
RedPowerWiring [RP Wiring] (redpowerdigital.zip) Unloaded->Constructed
RedPowerLogic [RP Logic] (redpowerdigital.zip) Unloaded->Constructed
RedPowerLighting [RP Lighting] (redpowerdigital.zip) Unloaded->Constructed
RedPowerWorld [RP World] (redpowermechanical.zip) Unloaded->Constructed
RedPowerControl [RP Control] (redpowermechanical.zip) Unloaded->Constructed
ThermalExpansion|Factory [Factory] (thermalexpansion.zip) Unloaded->Constructed
ThermalExpansion|Energy [Energy] (thermalexpansion.zip) Unloaded->Constructed
ThermalExpansion|Transport [Transport] (thermalexpansion.zip) Unloaded->Constructed
TwilightForest [The Twilight Forest] (TwilightForest.zip) Unloaded->Constructed
XyCraft [XyCraft] (xycraft.zip) Unloaded->Constructed
GregTech_Addon [GregTech-Addon] (GregTech.zip) Unloaded->Constructed
IC2NuclearControl [Nuclear Control] (IC2NuclearControl.zip) Unloaded->Constructed
inventorytweaks_forge [Inventory Tweaks (Forge)] (InvTweaks.jar) Unloaded->Errored
IronChest [Iron Chest] (IronChest.zip) Unloaded->Constructed
MiscPeripherals [MiscPeripherals] (miscperipherals.jar) Unloaded->Constructed
ModularForceFieldSystem [Modular ForceField System V2] (modularforcefieldsystem.zip) Unloaded->Constructed
NEIPlugins [NEI Plugins] (neiplugins.jar) Unloaded->Constructed
ObsidiPlates [Obsidian Pressure Plates] (obsidiplates.zip) Unloaded->Constructed
TC [Traincraft] (traincraft.jar) Unloaded->Constructed
drceph.petrogen [Petroleum Generator] (petrogen.zip) Unloaded->Constructed
PortalGun [Portal Gun] (PortalGun.zip) Unloaded->Constructed
mod_ReiMinimap [mod_ReiMinimap] (reiminimap.zip) Unloaded->Constructed
SoulShards [SoulShards] (soulshards.zip) Unloaded->Constructed
StevesCarts [Steve's Carts] (StevesCarts.zip) Unloaded->Constructed
Thaumcraft [Thaumcraft] (Thaumcraft.zip) Unloaded->Constructed
WR-CBE|Core [WR-CBE Core] (wirelessredstonecore.jar) Unloaded->Constructed
WR-CBE|Addons [WR-CBE Addons] (wirelessredstoneaddons.jar) Unloaded->Constructed
WR-CBE|RedPower [WR-CBE RedPower] (wirelessredstoneredpower.jar) Unloaded->Constructed
LWJGL: 2.4.2
OpenGL: ATI Radeon HD 5700 Series GL version 2.1.9017, ATI Technologies Inc.
Is Modded: Definitely; Client brand changed to 'forge,fml'
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

I don't know if that would be anough to know the error, but please try to help me Dx
 
Update to latest modpack version (Assuming you're running DW20 5.1.0, update to 5.1.1). InvTweaks bug has been fixed, it was caused because InvTweaks accidentally called upon some Java 7 methods, when using a Java 6 client.
 
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