Update any mods that have the IC2 API. if the problem still happens, go into the mods and delete the IC2 folder in them. if it still happens, then I have no clue.
I am sorry to be ignorant, but how would I be able to determine WHICH of my mods have IC2 API? I am so sad.. this is my FAVORITE mod, and it killed my oldest and most developed world... heh ahh!!!!
PM
Description: Exception in server tick loop
java.lang.RuntimeException: java.lang.NoSuchFieldException: custumData
at ic2.core.network.NetworkManager.getFieldData(NetworkManager.java:628)
at ic2.core.network.NetworkManager.sendUpdatePacket(NetworkManager.java:340)
at ic2.core.network.NetworkManager.sendUpdatePacket(NetworkManager.java:333)
at ic2.core.network.NetworkManager.onTick(NetworkManager.java:81)
at ic2.core.IC2.tickStart(IC2.java:1205)
at cpw.mods.fml.common.SingleIntervalHandler.tickStart(SingleIntervalHandler.java:28)
at cpw.mods.fml.common.FMLCommonHandler.tickStart(FMLCommonHandler.java:122)
at cpw.mods.fml.common.FMLCommonHandler.onPreWorldTick(FMLCommonHandler.java:295)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:635)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:570)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:127)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:468)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NoSuchFieldException: custumData
at ic2.core.network.NetworkManager.getFieldData(NetworkManager.java:622)
... 12 more
Anyone know what this could be due to? 
This should be in the Modular Powersuit thread.
As for the help, if you haven't tried uninstalling and updating Powersuits and IC2 yet, you should try that first with a new set of configs
Otherwise, try making a new Glove
Pardon my ignorance, but how do you Uninstall and update Powersuites and IC2 when you have a world that has both in it? I think my problem with that is that I have had to make some modifications to other configs so I don't have block ID conflicts. I finally got the Forestry and Advanced Solar Panels mods working and I am really scared I will 'f' it all up. 
Guess I could just make a full backup of my .minecraft folder in case. Just paranoid I guess. What is the correct procedure to "uninstall" a mod like IC2? Just remove the JAR file? What about all the rest of the configs etc? How can I be sure I got it all out?
Hi folks,
I had my Modular Powersuit charging just fine in a fully charged MFSU up until I accidentally made the mistake of installing GregTech. I have since removed GregTech, but my Power Glove will no longer even be accepted by the MFSU. I checked my config for Modular Powersuits and the IC2 recipes line is set to TRUE, and anything else in there that references IC2 is turned on. Does anyone know if I have to do anything else to fix this? I am so sad that I cannot recharge my Powersuit stuff now.
Any help would be awesomely appreciated.
I just installed this and am crashing out - can someone please help me?
Minecraft has stopped running because it encountered a problem; Failed to start game
--- BEGIN ERROR REPORT fde87ef3 --------
LWJGL: 2.4.2
OpenGL: Intel(R) HD Graphics GL version 2.1.0 - Build 8.15.10.2182, Intel
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Texture Pack: Minecraft Enhanced v1.5 64x.zip
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
cpw.mods.fml.common.LoaderException: java.lang.NoSuchFieldError: advRecipes
at cpw.mods.fml.common.LoadController.transition(LoadController.java:142)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:696)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:206)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:444)
at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
at net.minecraft.client.Minecraft.run(Minecraft.java:729)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchFieldError: advRecipes
at advsolar.AdvancedSolarPanel.postInit(AdvancedSolarPanel.java:239)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:515)
at sun.reflect.GeneratedMethodAccessor6.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:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:165)
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:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:98)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:695)
... 5 more
--- END ERROR REPORT c8309b2b ----------
Hello.. I just installed Compact Solars (1.5.1-4.1.6.37) and I get a crash report stating the following:
---- Minecraft Crash Report ----
// Ouch. That hurt 
Time: 4/28/13 2:00 PM
Description: Failed to start game
cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: cpw/mods/compactsolars/TileEntityCompactSolar
at cpw.mods.fml.common.LoadController.transition(LoadController.java:142)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:515)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:160)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:407)
at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
at net.minecraft.client.Minecraft.run(Minecraft.java:729)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: cpw/mods/compactsolars/TileEntityCompactSolar
at cpw.mods.compactsolars.CompactSolars.preInit(CompactSolars.java:53)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:515)
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:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:165)
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:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:98)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:514)
... 5 more
Caused by: java.lang.ClassNotFoundException: cpw.mods.compactsolars.TileEntityCompactSolar
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:238)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 31 more
Caused by: java.lang.NoClassDefFoundError: ic2/api/tile/IWrenchable
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:227)
... 33 more
Caused by: java.lang.ClassNotFoundException: ic2.api.tile.IWrenchable
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:139)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 37 more
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- System Details --
Details:
Minecraft Version: 1.5.1
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_17, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 720342008 bytes (686 MB) / 1003159552 bytes (956 MB) up to 1003159552 bytes (956 MB)
JVM Flags: 2 total; -Xms1024m -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: 0, tallocated: 0
FML: MCP v7.44 FML v5.1.21.651 Minecraft Forge 7.7.1.651 32 mods loaded, 32 mods active
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized
CodeChickenCore [CodeChicken Core] (coremods) Unloaded->Constructed->Pre-initialized
NotEnoughItems [Not Enough Items] (coremods) Unloaded->Constructed->Pre-initialized
GuiAPI [GuiAPI] (minecraft.jar) Unloaded->Constructed->Pre-initialized
LOTR [The Lord of the Rings Mod] ([1.5.1] The Lord of the Rings Mod Public Beta 4.1.zip) Unloaded->Constructed->Pre-initialized
advkit [Adventure Kit] (Adventure-Kit-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized
Backpack [Backpack] (Backpacks-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized
weaponmod [Balkon's WeaponMod] (Balkons-Weapon-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized
BasicComponents [Basic Components] (Basic-Components-1.5.1.jar) Unloaded->Constructed->Pre-initialized
BiblioCraft [BiblioCraft] (BiblioCraft[v1.1.6].zip) Unloaded->Constructed->Pre-initialized
BuildCraft|Core [BuildCraft] (buildcraft-A-3.5.0.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Builders [BC Builders] (buildcraft-A-3.5.0.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Energy [BC Energy] (buildcraft-A-3.5.0.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Factory [BC Factory] (buildcraft-A-3.5.0.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Transport [BC Transport] (buildcraft-A-3.5.0.jar) Unloaded->Constructed->Pre-initialized
BuildCraft|Silicon [BC Silicon] (buildcraft-A-3.5.0.jar) Unloaded->Constructed->Pre-initialized
IC2 [IndustrialCraft 2] (industrialcraft-2_1.115.294-lf.jar) Unloaded->Constructed->Pre-initialized
ChargePads [Charge Pads] (chargepads-1.5.1-universal-2.6.0.74.jar) Unloaded->Constructed->Pre-initialized
CompactSolars [Compact Solar Arrays] (compactsolars-universal-1.5.1-4.1.6.37.zip) Unloaded->Constructed->Errored
CustomSpawner [DrZhark's CustomSpawner] (Custom-Mob-Spawner-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized
MoCreatures [DrZhark's Mo'Creatures Mod] (DrZharks MoCreatures Mod v5.0.8.zip) Unloaded->Constructed->Pre-initialized
Meteors [Falling Meteors] (Falling-Meteors-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized
GraveStone [GraveStone] (Gravestone-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized
IC2NuclearControl [Nuclear Control] (IC2NuclearControl-1.5.1.zip) Unloaded->Constructed->Pre-initialized
inventorytweaks [Inventory Tweaks] (Inventory-Tweaks-Mod-1.5.jar) Unloaded->Constructed->Pre-initialized
IronChest [Iron Chest] (Iron-Chests-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized
mod_automap [mod_automap] (mod_automap) Unloaded->Constructed->Pre-initialized
mmmPowersuits [MachineMuse's Modular Powersuits] (ModularPowersuits-0.4.2-326.jar) Unloaded->Constructed->Pre-initialized
PowersuitAddons [Andrew2448's Modular Powersuits Addon] (MPSA-0.2.2-52_MPS-326.jar) Unloaded->Constructed->Pre-initialized
mod_ReiMinimap [mod_ReiMinimap] (Reis-Minimap-Mod-1.5.1.zip) Unloaded->Constructed->Pre-initialized
LWJGL: 2.4.2
OpenGL: AMD Radeon HD 7900 Series GL version 4.2.12002 Compatibility Profile Context 9.12.0.0, ATI Technologies Inc.
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Texture Pack: Minecraft Enhanced v1.5 64x.zip
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
Can someone please recommend a solution to my problem? I don't know how to resolve this...
Thanks so much.
