Unable to Launch FTB Mindcrack Pack with new 8.1.0 update

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wafflewarden

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Jul 29, 2019
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When I launch the game, I get to the Mojang title screen and then FTB crashes. This has only occurred since I updated to 8.1.0 with the Mindcrack pack. Here is the error log



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\Richie\Downloads\MindCrack\minecraft\crash-reports\crash-2013-02-21_13.53.25-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 1ecb1241 --------
Full report at:
C:\Users\Richie\Downloads\MindCrack\minecraft\crash-reports\crash-2013-02-21_13.53.25-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 2/21/13 1:53 PM

-- System Details --
Details:
Minecraft Version: 1.4.7
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.6.0_29, Sun Microsystems Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
Memory: 183912080 bytes (175 MB) / 266272768 bytes (253 MB) up to 1065025536 bytes (1015 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 Mobility Radeon HD 4250 GL version 3.3.10243 Compatibility Profile Context, 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

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
--- END ERROR REPORT 921762e2 ----------
 
W

Whovian

New Member
Jul 29, 2019
1,181
0
1
Looks like Invtweaks got installed incorrectly somehow. Try re-downloading the pack.
 
W

wafflewarden

New Member
Jul 29, 2019
14
0
0
I have tried re-downloading the pack but it comes up with the same error regardless. If the problem is invtweaks I can try replacing the jar manually
 
W

wafflewarden

New Member
Jul 29, 2019
14
0
0
apparently replacing the mod manually just prompts a new download to being, which subsequently crashes in the same manner for the same reason
 
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