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Mystery: two exact same laptops running two exact same builds of MC and Forge

mamakibbles
in Support & Bug Reports

Featured Replies

Hi. I am writing here as a last resort, after posting on minecraftforum.net, under different topics, and then a consolidated topic, when I realized that the problem seems to be how one of the laptops interacts with Forge.

 

So. My two sons have two identical Lenovo laptops. We own three copies of Minecraft. Last year for a few months we all played together on LAN and also played together with modded MC, in LAN, as well as on our own.

 

Something changed after the version of Minecraft was released at the end of last year. It started happening that my older son's computer would run the mod great, but the other would not. Now, the younger son's laptop won't run even with Forge, standing alone. Vanilla minecraft runs great, but if we put Forge on it, it will load up and look like it's going to run...but if you try to actually open a world, it crashes.

 

Here is the last post I created about it on minecraftforum.net, which did get some good ideas in response, but none that fixed the problem http://www.minecraftforum.net/topic/1594491-what-could-make-a-mod-work-on-one-computer-but-not-on-another-with-identical-minecraft-setups/

 

I think that this Forge issue may have been the problem all along, but it took me a long time to figure it out because typically I just open MC up (once forge is loaded in the .jar file) and then close it right down, without actually running one of the worlds with just Forge, before putting a mod in the mod file.

 

Here is the latest crash report from when I tried this half an hour ago. I keep hoping that something will change with the latest update of MC or Forge and it will all work again. It is still fun to play but the younger son is sad he can't LAN with his brother with a modded system.

 

 

 

---- Minecraft Crash Report ----

// Everything's going to plan. No, really, that was supposed to happen.

 

Time: 1/13/13 5:38 PM

Description: Ticking entity

 

java.lang.IllegalAccessError: tried to access field uy.c from class net.minecraftforge.common.ForgeHooks

at net.minecraftforge.common.ForgeHooks.initTools(ForgeHooks.java:186)

at net.minecraftforge.common.ForgeHooks.<clinit>(ForgeHooks.java:257)

at md.j_(EntityLiving.java:803)

at qo.j_(EntitySlime.java:109)

at yc.a(World.java:2291)

at in.a(WorldServer.java:647)

at yc.g(World.java:2253)

at yc.h(World.java:2107)

at in.h(WorldServer.java:516)

at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:680)

at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:599)

at bdz.q(IntegratedServer.java:123)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)

at fy.run(SourceFile:849)

 

 

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

---------------------------------------------------------------------------------------

 

-- Head --

Stacktrace:

at net.minecraftforge.common.ForgeHooks.initTools(ForgeHooks.java:186)

at net.minecraftforge.common.ForgeHooks.<clinit>(ForgeHooks.java:257)

at md.j_(EntityLiving.java:803)

at qo.j_(EntitySlime.java:109)

at yc.a(World.java:2291)

at in.a(WorldServer.java:647)

at yc.g(World.java:2253)

 

-- Entity being ticked --

Details:

Entity Type: Slime (qo)

Entity ID: 45

Name: Slime

Exact location: -247.60, 62.00, 84.40

Block location: World: (-248,62,84), Chunk: (at 8,3,4 in -16,5; contains blocks -256,0,80 to -241,255,95), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)

Momentum: 0.00, -0.02, 0.00

Stacktrace:

at yc.h(World.java:2107)

at in.h(WorldServer.java:516)

 

-- Affected level --

Details:

Level name: bilbobaggins

All players: 0 total; []

Chunk stats: ServerChunkCache: 625 Drop: 0

Level seed: 5177542111697041993

Level generator: ID 00 - default, ver 1. Features enabled: true

Level generator options:

Level spawn location: World: (-84,64,244), Chunk: (at 12,4,4 in -6,15; contains blocks -96,0,240 to -81,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)

Level time: 273455 game time, 284675 day time

Level dimension: 0

Level storage version: 0x04ABD - Anvil

Level weather: Rain time: 26827 (now: false), thunder time: 29856 (now: false)

Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: true

Stacktrace:

at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:680)

at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:599)

at bdz.q(IntegratedServer.java:123)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)

at fy.run(SourceFile:849)

 

-- System Details --

Details:

Minecraft Version: 1.4.7

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: 315894776 bytes (301 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)

JVM Flags: 2 total; -Xms512m -Xmx1024m

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: 1, tallocated: 63

FML: MCP v7.26 FML v4.7.4.520 Minecraft Forge 6.6.0.497 3 mods loaded, 3 mods active

mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available

FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available

Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available

Profiler Position: N/A (disabled)

Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Player Count: 0 / 8; []

Type: Integrated Server (map_client.txt)

Is Modded: Definitely; Client brand changed to 'forge,fml'

 

 

 

Forge crash report

 

 

 

2013-01-13 17:36:18 [iNFO] [ForgeModLoader] Forge Mod Loader version 4.7.4.520 for Minecraft 1.4.7 loading

2013-01-13 17:36:18 [FINEST] [ForgeModLoader] All core mods are successfully located

2013-01-13 17:36:18 [FINEST] [ForgeModLoader] Discovering coremods

2013-01-13 17:36:18 [FINEST] [ForgeModLoader] Found library file argo-2.25.jar present and correct in lib dir

2013-01-13 17:36:18 [FINEST] [ForgeModLoader] Found library file guava-12.0.1.jar present and correct in lib dir

2013-01-13 17:36:18 [FINEST] [ForgeModLoader] Found library file asm-all-4.0.jar present and correct in lib dir

2013-01-13 17:36:18 [FINEST] [ForgeModLoader] Found library file bcprov-jdk15on-147.jar present and correct in lib dir

2013-01-13 17:36:19 [FINEST] [ForgeModLoader] Running coremod plugins

2013-01-13 17:36:19 [FINEST] [ForgeModLoader] Running coremod plugin FMLCorePlugin

2013-01-13 17:36:19 [iNFO] [ForgeModLoader] Found valid fingerprint for Minecraft Forge. Certificate fingerprint de4cf8a3f3bc15635810044c39240bf96804ea7d

2013-01-13 17:36:19 [FINEST] [ForgeModLoader] Coremod plugin FMLCorePlugin run successfully

2013-01-13 17:36:19 [FINEST] [ForgeModLoader] Running coremod plugin FMLForgePlugin

2013-01-13 17:36:19 [FINEST] [ForgeModLoader] Coremod plugin FMLForgePlugin run successfully

2013-01-13 17:36:19 [FINEST] [ForgeModLoader] Validating minecraft

2013-01-13 17:36:19 [FINEST] [ForgeModLoader] Minecraft validated, launching...

2013-01-13 17:36:22 [iNFO] [sTDOUT] 27 achievements

2013-01-13 17:36:23 [iNFO] [sTDOUT] 210 recipes

2013-01-13 17:36:23 [iNFO] [sTDOUT] Setting user: TrustyKibbles, -7069188085087687333

2013-01-13 17:36:23 [iNFO] [sTDOUT] LWJGL Version: 2.4.2

2013-01-13 17:36:24 [iNFO] [ForgeModLoader] Attempting early MinecraftForge initialization

2013-01-13 17:36:24 [iNFO] [sTDOUT] MinecraftForge v6.6.0.497 Initialized

2013-01-13 17:36:24 [iNFO] [ForgeModLoader] MinecraftForge v6.6.0.497 Initialized

2013-01-13 17:36:24 [iNFO] [ForgeModLoader] Completed early MinecraftForge initialization

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Building injected Mod Containers [cpw.mods.fml.common.FMLDummyContainer, net.minecraftforge.common.ForgeDummyContainer]

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Attempting to load mods contained in the minecraft jar file and associated classes

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\bin\lwjgl.jar

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\bin\jinput.jar

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\bin\lwjgl_util.jar

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Found a minecraft related file at C:\Users\sam\AppData\Roaming\.minecraft\bin\minecraft.jar, examining for mod candidates

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\lib\argo-2.25.jar

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\lib\guava-12.0.1.jar

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\lib\asm-all-4.0.jar

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\lib\bcprov-jdk15on-147.jar

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Minecraft jar mods loaded successfully

2013-01-13 17:36:25 [iNFO] [ForgeModLoader] Searching C:\Users\sam\AppData\Roaming\.minecraft\mods for mods

2013-01-13 17:36:25 [FINE] [ForgeModLoader] Examining file minecraft.jar for potential mods

2013-01-13 17:36:25 [FINE] [ForgeModLoader] The mod container minecraft.jar appears to be missing an mcmod.info file

2013-01-13 17:36:26 [iNFO] [ForgeModLoader] Forge Mod Loader has identified 3 mods to load

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Received a system property request ''

2013-01-13 17:36:26 [FINE] [ForgeModLoader] System property request managing the state of 0 mods

2013-01-13 17:36:26 [FINE] [ForgeModLoader] After merging, found state information for 0 mods

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Activating mod mcp

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Activating mod FML

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Activating mod Forge

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Verifying mod requirements are satisfied

2013-01-13 17:36:26 [FINE] [ForgeModLoader] All mod requirements are satisfied

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Sorting mods into an ordered list

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Mod sorting completed successfully

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Mod sorting data:

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sending event FMLConstructionEvent to mod mcp

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sent event FMLConstructionEvent to mod mcp

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sending event FMLConstructionEvent to mod FML

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sent event FMLConstructionEvent to mod FML

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sending event FMLConstructionEvent to mod Forge

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sent event FMLConstructionEvent to mod Forge

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Mod signature data:

2013-01-13 17:36:26 [FINE] [ForgeModLoader] mcp(Minecraft Coder Pack:7.26): minecraft.jar (NO VALID CERTIFICATE FOUND)

2013-01-13 17:36:26 [FINE] [ForgeModLoader] FML(Forge Mod Loader:4.7.4.520): coremods (de4cf8a3f3bc15635810044c39240bf96804ea7d)

2013-01-13 17:36:26 [FINE] [ForgeModLoader] Forge(Minecraft Forge:6.6.0.497): coremods (NO VALID CERTIFICATE FOUND)

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sending event FMLPreInitializationEvent to mod mcp

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sent event FMLPreInitializationEvent to mod mcp

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sending event FMLPreInitializationEvent to mod FML

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sent event FMLPreInitializationEvent to mod FML

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sending event FMLPreInitializationEvent to mod Forge

2013-01-13 17:36:26 [iNFO] [ForgeModLoader] Configured a dormant chunk cache size of 0

2013-01-13 17:36:26 [FINER] [ForgeModLoader] Sent event FMLPreInitializationEvent to mod Forge

2013-01-13 17:36:27 [iNFO] [sTDOUT] Starting up SoundSystem...

2013-01-13 17:36:27 [iNFO] [sTDOUT] Initializing LWJGL OpenAL

2013-01-13 17:36:27 [iNFO] [sTDOUT]    (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)

2013-01-13 17:36:27 [iNFO] [sTDOUT] OpenAL initialized.

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLInitializationEvent to mod mcp

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLInitializationEvent to mod mcp

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLInitializationEvent to mod FML

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLInitializationEvent to mod FML

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLInitializationEvent to mod Forge

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLInitializationEvent to mod Forge

2013-01-13 17:36:28 [FINEST] [ForgeModLoader] Attempting to deliver 0 IMC messages to mod mcp

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event IMCEvent to mod mcp

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event IMCEvent to mod mcp

2013-01-13 17:36:28 [FINEST] [ForgeModLoader] Attempting to deliver 0 IMC messages to mod FML

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event IMCEvent to mod FML

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event IMCEvent to mod FML

2013-01-13 17:36:28 [FINEST] [ForgeModLoader] Attempting to deliver 0 IMC messages to mod Forge

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event IMCEvent to mod Forge

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event IMCEvent to mod Forge

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLPostInitializationEvent to mod mcp

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLPostInitializationEvent to mod mcp

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLPostInitializationEvent to mod FML

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLPostInitializationEvent to mod FML

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLPostInitializationEvent to mod Forge

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLPostInitializationEvent to mod Forge

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLLoadCompleteEvent to mod mcp

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLLoadCompleteEvent to mod mcp

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLLoadCompleteEvent to mod FML

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLLoadCompleteEvent to mod FML

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sending event FMLLoadCompleteEvent to mod Forge

2013-01-13 17:36:28 [FINER] [ForgeModLoader] Sent event FMLLoadCompleteEvent to mod Forge

2013-01-13 17:36:28 [iNFO] [ForgeModLoader] Forge Mod Loader has successfully loaded 3 mods

2013-01-13 17:38:28 [sEVERE] [ForgeModLoader] This world was saved with mod AS_Minions which appears to be missing, things may not work well

2013-01-13 17:38:28 [FINE] [ForgeModLoader] The difference set is not equal: only on left={2783=Item 2783, Type atomicstryker.minions.common.ItemMastersStaff, owned by AS_Minions, ordinal 0, name null, claimedModId null}

2013-01-13 17:38:28 [sEVERE] [ForgeModLoader] FML has detected item discrepancies

2013-01-13 17:38:28 [sEVERE] [ForgeModLoader] Missing items : {2783=Item 2783, Type atomicstryker.minions.common.ItemMastersStaff, owned by AS_Minions, ordinal 0, name null, claimedModId null}

2013-01-13 17:38:28 [sEVERE] [ForgeModLoader] Mismatched items : {}

2013-01-13 17:38:37 [iNFO] [ForgeModLoader] Loading dimension 0 (bilbobaggins) (bdz@da5e85)

2013-01-13 17:38:37 [iNFO] [ForgeModLoader] Loading dimension 1 (bilbobaggins) (bdz@da5e85)

2013-01-13 17:38:37 [iNFO] [ForgeModLoader] Loading dimension -1 (bilbobaggins) (bdz@da5e85)

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sending event FMLServerStartingEvent to mod mcp

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sent event FMLServerStartingEvent to mod mcp

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sending event FMLServerStartingEvent to mod FML

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sent event FMLServerStartingEvent to mod FML

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sending event FMLServerStartingEvent to mod Forge

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sent event FMLServerStartingEvent to mod Forge

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sending event FMLServerStartedEvent to mod mcp

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sent event FMLServerStartedEvent to mod mcp

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sending event FMLServerStartedEvent to mod FML

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sent event FMLServerStartedEvent to mod FML

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sending event FMLServerStartedEvent to mod Forge

2013-01-13 17:38:40 [FINER] [ForgeModLoader] Sent event FMLServerStartedEvent to mod Forge

2013-01-13 17:38:40 [iNFO] [sTDERR] t: Ticking entity

2013-01-13 17:38:40 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:686)

2013-01-13 17:38:40 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:599)

2013-01-13 17:38:40 [iNFO] [sTDERR] at bdz.q(IntegratedServer.java:123)

2013-01-13 17:38:40 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)

2013-01-13 17:38:40 [iNFO] [sTDERR] at fy.run(SourceFile:849)

2013-01-13 17:38:40 [iNFO] [sTDERR] Caused by: java.lang.IllegalAccessError: tried to access field uy.c from class net.minecraftforge.common.ForgeHooks

2013-01-13 17:38:40 [iNFO] [sTDERR] at net.minecraftforge.common.ForgeHooks.initTools(ForgeHooks.java:186)

2013-01-13 17:38:40 [iNFO] [sTDERR] at net.minecraftforge.common.ForgeHooks.<clinit>(ForgeHooks.java:257)

2013-01-13 17:38:40 [iNFO] [sTDERR] at md.j_(EntityLiving.java:803)

2013-01-13 17:38:40 [iNFO] [sTDERR] at qo.j_(EntitySlime.java:109)

2013-01-13 17:38:40 [iNFO] [sTDERR] at yc.a(World.java:2291)

2013-01-13 17:38:40 [iNFO] [sTDERR] at in.a(WorldServer.java:647)

2013-01-13 17:38:40 [iNFO] [sTDERR] at yc.g(World.java:2253)

2013-01-13 17:38:40 [iNFO] [sTDERR] at yc.h(World.java:2107)

2013-01-13 17:38:40 [iNFO] [sTDERR] at in.h(WorldServer.java:516)

2013-01-13 17:38:40 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:680)

2013-01-13 17:38:40 [iNFO] [sTDERR] ... 4 more

2013-01-13 17:38:41 [iNFO] [ForgeModLoader] Unloading dimension 0

2013-01-13 17:38:41 [iNFO] [ForgeModLoader] Unloading dimension -1

2013-01-13 17:38:41 [iNFO] [ForgeModLoader] Unloading dimension 1

2013-01-13 17:38:41 [FINER] [ForgeModLoader] Sending event FMLServerStoppedEvent to mod mcp

2013-01-13 17:38:41 [FINER] [ForgeModLoader] Sent event FMLServerStoppedEvent to mod mcp

2013-01-13 17:38:41 [FINER] [ForgeModLoader] Sending event FMLServerStoppedEvent to mod FML

2013-01-13 17:38:41 [FINER] [ForgeModLoader] Sent event FMLServerStoppedEvent to mod FML

2013-01-13 17:38:41 [FINER] [ForgeModLoader] Sending event FMLServerStoppedEvent to mod Forge

2013-01-13 17:38:41 [FINER] [ForgeModLoader] Sent event FMLServerStoppedEvent to mod Forge

2013-01-13 17:38:41 [sEVERE] [ForgeModLoader] Fatal errors were detected during the transition from SERVER_STARTED to SERVER_STOPPED. Loading cannot continue

2013-01-13 17:38:41 [sEVERE] [ForgeModLoader]

mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available

2013-01-13 17:38:41 [sEVERE] [ForgeModLoader] The following problems were captured during this phase

2013-01-13 17:38:41 [iNFO] [sTDERR] Exception in thread "Server thread" cpw.mods.fml.common.LoaderException

2013-01-13 17:38:41 [iNFO] [sTDERR] at cpw.mods.fml.common.LoadController.transition(LoadController.java:117)

2013-01-13 17:38:41 [iNFO] [sTDERR] at cpw.mods.fml.common.Loader.serverStopped(Loader.java:752)

2013-01-13 17:38:41 [iNFO] [sTDERR] at cpw.mods.fml.common.FMLCommonHandler.handleServerStopped(FMLCommonHandler.java:459)

2013-01-13 17:38:41 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:559)

2013-01-13 17:38:41 [iNFO] [sTDERR] at fy.run(SourceFile:849)

2013-01-13 17:38:50 [iNFO] [sTDOUT] Stopping!

2013-01-13 17:38:50 [iNFO] [sTDOUT] SoundSystem shutting down...

2013-01-13 17:38:50 [iNFO] [sTDOUT]    Author: Paul Lamb, www.paulscode.com

 

 

 

Thanks for any help.

  • Author

Newer crash reports. Got a fresh .minecraft altogether. This time it just froze up before actually giving me the white text screen of death.

 

MC crash report:

 

 

 

---- Minecraft Crash Report ----

// I just don't know what went wrong :(

 

Time: 1/13/13 6:17 PM

Description: Exception in server tick loop

 

java.lang.IllegalAccessError: tried to access field acp.a from class net.minecraftforge.common.ChestGenHooks

at net.minecraftforge.common.ChestGenHooks.init(ChestGenHooks.java:42)

at net.minecraftforge.common.ChestGenHooks.<clinit>(ChestGenHooks.java:30)

at abx.a(WorldGenDungeons.java:133)

at abb.a(ChunkProviderGenerate.java:571)

at im.a(ChunkProviderServer.java:258)

at zz.a(Chunk.java:1258)

at im.c(ChunkProviderServer.java:153)

at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:310)

at bdz.a(IntegratedServer.java:84)

at bdz.c(IntegratedServer.java:100)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)

at fy.run(SourceFile:849)

 

 

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: 1.7.0_09, Oracle Corporation

Java VM Version: Java HotSpot Client VM (mixed mode), Oracle Corporation

Memory: 400677608 bytes (382 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)

JVM Flags: 2 total; -Xms512m -Xmx1024m

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: 3, tallocated: 63

FML: MCP v7.26 FML v4.7.4.520 Minecraft Forge 6.6.0.497 3 mods loaded, 3 mods active

mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available

Profiler Position: N/A (disabled)

Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

Player Count: 0 / 8; []

Type: Integrated Server (map_client.txt)

Is Modded: Definitely; Client brand changed to 'forge,fml'

 

 

 

Forge crash report

 

2013-01-13 18:16:43 [iNFO] [ForgeModLoader] Forge Mod Loader version 4.7.4.520 for Minecraft 1.4.7 loading

2013-01-13 18:16:43 [FINEST] [ForgeModLoader] All core mods are successfully located

2013-01-13 18:16:43 [FINEST] [ForgeModLoader] Discovering coremods

2013-01-13 18:16:43 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar

2013-01-13 18:16:43 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar

2013-01-13 18:16:43 [FINEST] [ForgeModLoader] Download complete

2013-01-13 18:16:43 [iNFO] [ForgeModLoader] Download complete

2013-01-13 18:16:43 [FINEST] [ForgeModLoader] Library file argo-2.25.jar was downloaded and verified successfully

2013-01-13 18:16:43 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar

2013-01-13 18:16:43 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar

2013-01-13 18:16:45 [FINEST] [ForgeModLoader] Download complete

2013-01-13 18:16:45 [iNFO] [ForgeModLoader] Download complete

2013-01-13 18:16:45 [FINEST] [ForgeModLoader] Library file guava-12.0.1.jar was downloaded and verified successfully

2013-01-13 18:16:45 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar

2013-01-13 18:16:45 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar

2013-01-13 18:16:45 [FINEST] [ForgeModLoader] Download complete

2013-01-13 18:16:45 [iNFO] [ForgeModLoader] Download complete

2013-01-13 18:16:45 [FINEST] [ForgeModLoader] Library file asm-all-4.0.jar was downloaded and verified successfully

2013-01-13 18:16:45 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar

2013-01-13 18:16:45 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar

2013-01-13 18:16:46 [FINEST] [ForgeModLoader] Download complete

2013-01-13 18:16:46 [iNFO] [ForgeModLoader] Download complete

2013-01-13 18:16:46 [FINEST] [ForgeModLoader] Library file bcprov-jdk15on-147.jar was downloaded and verified successfully

2013-01-13 18:16:47 [FINEST] [ForgeModLoader] Running coremod plugins

2013-01-13 18:16:47 [FINEST] [ForgeModLoader] Running coremod plugin FMLCorePlugin

2013-01-13 18:16:47 [iNFO] [ForgeModLoader] Found valid fingerprint for Minecraft Forge. Certificate fingerprint de4cf8a3f3bc15635810044c39240bf96804ea7d

2013-01-13 18:16:47 [FINEST] [ForgeModLoader] Coremod plugin FMLCorePlugin run successfully

2013-01-13 18:16:47 [FINEST] [ForgeModLoader] Running coremod plugin FMLForgePlugin

2013-01-13 18:16:47 [FINEST] [ForgeModLoader] Coremod plugin FMLForgePlugin run successfully

2013-01-13 18:16:47 [FINEST] [ForgeModLoader] Validating minecraft

2013-01-13 18:16:48 [FINEST] [ForgeModLoader] Minecraft validated, launching...

2013-01-13 18:16:52 [iNFO] [sTDOUT] 27 achievements

2013-01-13 18:16:52 [iNFO] [sTDOUT] 210 recipes

2013-01-13 18:16:52 [iNFO] [sTDOUT] Setting user: TrustyKibbles, 2344236930554168277

2013-01-13 18:16:52 [iNFO] [sTDOUT] LWJGL Version: 2.4.2

2013-01-13 18:16:54 [iNFO] [ForgeModLoader] Attempting early MinecraftForge initialization

2013-01-13 18:16:54 [iNFO] [sTDOUT] MinecraftForge v6.6.0.497 Initialized

2013-01-13 18:16:54 [iNFO] [ForgeModLoader] MinecraftForge v6.6.0.497 Initialized

2013-01-13 18:16:54 [iNFO] [ForgeModLoader] Completed early MinecraftForge initialization

2013-01-13 18:16:54 [iNFO] [ForgeModLoader] No mod directory found, creating one: C:\Users\sam\AppData\Roaming\.minecraft\mods

2013-01-13 18:16:54 [iNFO] [ForgeModLoader] Mod directory created successfully

2013-01-13 18:16:54 [FINE] [ForgeModLoader] No config directory found, creating one: C:\Users\sam\AppData\Roaming\.minecraft\config

2013-01-13 18:16:54 [iNFO] [ForgeModLoader] Config directory created successfully

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Building injected Mod Containers [cpw.mods.fml.common.FMLDummyContainer, net.minecraftforge.common.ForgeDummyContainer]

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Attempting to load mods contained in the minecraft jar file and associated classes

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\bin\lwjgl.jar

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\bin\jinput.jar

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\bin\lwjgl_util.jar

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Found a minecraft related file at C:\Users\sam\AppData\Roaming\.minecraft\bin\minecraft.jar, examining for mod candidates

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\lib\argo-2.25.jar

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\lib\guava-12.0.1.jar

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\lib\asm-all-4.0.jar

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Skipping known library file C:\Users\sam\AppData\Roaming\.minecraft\lib\bcprov-jdk15on-147.jar

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Minecraft jar mods loaded successfully

2013-01-13 18:16:55 [iNFO] [ForgeModLoader] Searching C:\Users\sam\AppData\Roaming\.minecraft\mods for mods

2013-01-13 18:16:55 [FINE] [ForgeModLoader] Examining file minecraft.jar for potential mods

2013-01-13 18:16:55 [FINE] [ForgeModLoader] The mod container minecraft.jar appears to be missing an mcmod.info file

2013-01-13 18:16:56 [iNFO] [ForgeModLoader] Forge Mod Loader has identified 3 mods to load

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Received a system property request ''

2013-01-13 18:16:56 [FINE] [ForgeModLoader] System property request managing the state of 0 mods

2013-01-13 18:16:56 [FINE] [ForgeModLoader] After merging, found state information for 0 mods

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Activating mod mcp

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Activating mod FML

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Activating mod Forge

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Verifying mod requirements are satisfied

2013-01-13 18:16:56 [FINE] [ForgeModLoader] All mod requirements are satisfied

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Sorting mods into an ordered list

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Mod sorting completed successfully

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Mod sorting data:

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sending event FMLConstructionEvent to mod mcp

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sent event FMLConstructionEvent to mod mcp

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sending event FMLConstructionEvent to mod FML

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sent event FMLConstructionEvent to mod FML

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sending event FMLConstructionEvent to mod Forge

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sent event FMLConstructionEvent to mod Forge

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Mod signature data:

2013-01-13 18:16:56 [FINE] [ForgeModLoader] mcp(Minecraft Coder Pack:7.26): minecraft.jar (NO VALID CERTIFICATE FOUND)

2013-01-13 18:16:56 [FINE] [ForgeModLoader] FML(Forge Mod Loader:4.7.4.520): coremods (de4cf8a3f3bc15635810044c39240bf96804ea7d)

2013-01-13 18:16:56 [FINE] [ForgeModLoader] Forge(Minecraft Forge:6.6.0.497): coremods (NO VALID CERTIFICATE FOUND)

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sending event FMLPreInitializationEvent to mod mcp

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sent event FMLPreInitializationEvent to mod mcp

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sending event FMLPreInitializationEvent to mod FML

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sent event FMLPreInitializationEvent to mod FML

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sending event FMLPreInitializationEvent to mod Forge

2013-01-13 18:16:56 [iNFO] [ForgeModLoader] Configured a dormant chunk cache size of 0

2013-01-13 18:16:56 [FINER] [ForgeModLoader] Sent event FMLPreInitializationEvent to mod Forge

2013-01-13 18:16:57 [iNFO] [sTDOUT] Starting up SoundSystem...

2013-01-13 18:16:58 [iNFO] [sTDOUT] Initializing LWJGL OpenAL

2013-01-13 18:16:58 [iNFO] [sTDOUT]    (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)

2013-01-13 18:16:58 [iNFO] [sTDOUT] OpenAL initialized.

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLInitializationEvent to mod mcp

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLInitializationEvent to mod mcp

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLInitializationEvent to mod FML

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLInitializationEvent to mod FML

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLInitializationEvent to mod Forge

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLInitializationEvent to mod Forge

2013-01-13 18:16:59 [FINEST] [ForgeModLoader] Attempting to deliver 0 IMC messages to mod mcp

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event IMCEvent to mod mcp

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event IMCEvent to mod mcp

2013-01-13 18:16:59 [FINEST] [ForgeModLoader] Attempting to deliver 0 IMC messages to mod FML

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event IMCEvent to mod FML

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event IMCEvent to mod FML

2013-01-13 18:16:59 [FINEST] [ForgeModLoader] Attempting to deliver 0 IMC messages to mod Forge

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event IMCEvent to mod Forge

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event IMCEvent to mod Forge

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLPostInitializationEvent to mod mcp

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLPostInitializationEvent to mod mcp

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLPostInitializationEvent to mod FML

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLPostInitializationEvent to mod FML

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLPostInitializationEvent to mod Forge

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLPostInitializationEvent to mod Forge

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLLoadCompleteEvent to mod mcp

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLLoadCompleteEvent to mod mcp

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLLoadCompleteEvent to mod FML

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLLoadCompleteEvent to mod FML

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sending event FMLLoadCompleteEvent to mod Forge

2013-01-13 18:16:59 [FINER] [ForgeModLoader] Sent event FMLLoadCompleteEvent to mod Forge

2013-01-13 18:16:59 [iNFO] [ForgeModLoader] Forge Mod Loader has successfully loaded 3 mods

2013-01-13 18:17:14 [iNFO] [sTDOUT] Scanning folders...

2013-01-13 18:17:14 [iNFO] [sTDOUT] Total conversion count is 0

2013-01-13 18:17:15 [FINE] [ForgeModLoader] The difference set is equal

2013-01-13 18:17:15 [iNFO] [ForgeModLoader] Loading dimension 0 (New World) (bdz@1e5a4f)

2013-01-13 18:17:15 [iNFO] [ForgeModLoader] Loading dimension 1 (New World) (bdz@1e5a4f)

2013-01-13 18:17:15 [iNFO] [ForgeModLoader] Loading dimension -1 (New World) (bdz@1e5a4f)

2013-01-13 18:17:17 [iNFO] [sTDERR] java.lang.IllegalAccessError: tried to access field acp.a from class net.minecraftforge.common.ChestGenHooks

2013-01-13 18:17:17 [iNFO] [sTDERR] at net.minecraftforge.common.ChestGenHooks.init(ChestGenHooks.java:42)

2013-01-13 18:17:17 [iNFO] [sTDERR] at net.minecraftforge.common.ChestGenHooks.<clinit>(ChestGenHooks.java:30)

2013-01-13 18:17:17 [iNFO] [sTDERR] at abx.a(WorldGenDungeons.java:133)

2013-01-13 18:17:17 [iNFO] [sTDERR] at abb.a(ChunkProviderGenerate.java:571)

2013-01-13 18:17:17 [iNFO] [sTDERR] at im.a(ChunkProviderServer.java:258)

2013-01-13 18:17:17 [iNFO] [sTDERR] at zz.a(Chunk.java:1258)

2013-01-13 18:17:17 [iNFO] [sTDERR] at im.c(ChunkProviderServer.java:153)

2013-01-13 18:17:17 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:310)

2013-01-13 18:17:17 [iNFO] [sTDERR] at bdz.a(IntegratedServer.java:84)

2013-01-13 18:17:17 [iNFO] [sTDERR] at bdz.c(IntegratedServer.java:100)

2013-01-13 18:17:17 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)

2013-01-13 18:17:17 [iNFO] [sTDERR] at fy.run(SourceFile:849)

2013-01-13 18:17:18 [iNFO] [ForgeModLoader] Unloading dimension 0

2013-01-13 18:17:18 [iNFO] [ForgeModLoader] Unloading dimension -1

2013-01-13 18:17:18 [iNFO] [ForgeModLoader] Unloading dimension 1

2013-01-13 18:17:18 [FINER] [ForgeModLoader] Sending event FMLServerStoppedEvent to mod mcp

2013-01-13 18:17:18 [FINER] [ForgeModLoader] Sent event FMLServerStoppedEvent to mod mcp

2013-01-13 18:17:18 [FINER] [ForgeModLoader] Sending event FMLServerStoppedEvent to mod FML

2013-01-13 18:17:18 [FINER] [ForgeModLoader] Sent event FMLServerStoppedEvent to mod FML

2013-01-13 18:17:18 [FINER] [ForgeModLoader] Sending event FMLServerStoppedEvent to mod Forge

2013-01-13 18:17:18 [FINER] [ForgeModLoader] Sent event FMLServerStoppedEvent to mod Forge

2013-01-13 18:17:18 [sEVERE] [ForgeModLoader] Fatal errors were detected during the transition from AVAILABLE to SERVER_STOPPED. Loading cannot continue

2013-01-13 18:17:18 [sEVERE] [ForgeModLoader]

mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available

FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available

Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available

2013-01-13 18:17:18 [sEVERE] [ForgeModLoader] The following problems were captured during this phase

2013-01-13 18:17:18 [iNFO] [sTDERR] Exception in thread "Server thread" cpw.mods.fml.common.LoaderException

2013-01-13 18:17:18 [iNFO] [sTDERR] at cpw.mods.fml.common.LoadController.transition(LoadController.java:117)

2013-01-13 18:17:18 [iNFO] [sTDERR] at cpw.mods.fml.common.Loader.serverStopped(Loader.java:752)

2013-01-13 18:17:18 [iNFO] [sTDERR] at cpw.mods.fml.common.FMLCommonHandler.handleServerStopped(FMLCommonHandler.java:459)

2013-01-13 18:17:18 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:559)

2013-01-13 18:17:18 [iNFO] [sTDERR] at fy.run(SourceFile:849)

 

 

Ensure you have fml_at.cfg and forge_at.cfg in your minecraft.jar.

Read the EAQ before posting! OR ELSE!

 

This isn't building better software, its trying to grab a place in the commit list of a highly visible github project.

 

www.forgeessentials.com

 

Don't PM me, I don't check this account unless I have to.

  • Author

Thank you. I checked this. No, it does not. But the brother's does not either, and it works perfectly.

  • Author

I would truly appreciate any suggestions anyone has. Younger brother very sad.

the issue is that you don't have the files properly installed or they are corrupt, either way there isn't much we can say beyond get a fresh jar and try again.

I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
Consider supporting the team on Patreon

  • 2 weeks later...
  • Author

Yes, you'd think that's it! Which is why I have completely deleted all mc and mcf files from both, started with exactly the same builds of each, and tried again. same problem. at least 20 different times. That's why I am so puzzled and looking for help.

To be honest, I'd recommend using a launcher such as MultiMC - not only will it help with setting up mods, it will also allow you to distribute the exact same instance between both computers without having to copy the Minecraft jar. That error is caused because of a file missing inside the jar.

I think I might know this one, something similar was happening to me and my brother. Find out where your Minecraft.exe is and make sure there aren't any random minecraft files in it (bin, etc). Try moving it to a new location. Hope that works :)

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