Question: Does MC need to be reset to vanilla to update IC2?

    I downloaded the new IC2 v 1.23, put the .jar in the mod folder and removed the old version and now MC crashes on start up.

    The only change was swapping out the IC2 .jar files from 1.15 to 1.23 and before that it worked great.

    Here is the crash log

    Display Spoiler


    Mods loaded: 7
    ModLoader Beta 1.8.1
    mod_BuildCraftCore 2.2.2
    mod_BuildCraftBuilders 2.2.2
    mod_BuildCraftEnergy 2.2.2
    mod_BuildCraftFactory 2.2.2
    mod_BuildCraftTransport 2.2.2
    mod_EE 1.8.1

    Minecraft has crashed!
    ----------------------

    Minecraft has stopped running because it encountered a problem.

    If you wish to report this, please copy this entire text and email it to support@mojang.com.
    Please include a description of what you did when the error occured.


    --- BEGIN ERROR REPORT e872e214 --------
    Generated 10/29/11 5:42 PM

    Minecraft: Minecraft Beta 1.8.1
    OS: Windows 7 (amd64) version 6.1
    Java: 1.6.0_27, Sun Microsystems Inc.
    VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
    LWJGL: 2.4.2
    OpenGL: GeForce 9400M/PCI/SSE2 version 3.3.0, NVIDIA Corporation

    java.lang.NoClassDefFoundError: forge/IOreHandler
    at java.lang.Class.getDeclaredFields0(Native Method)
    at java.lang.Class.privateGetDeclaredFields(Unknown Source)
    at java.lang.Class.privateGetPublicFields(Unknown Source)
    at java.lang.Class.getFields(Unknown Source)
    at ModLoader.setupProperties(ModLoader.java:1583)
    at ModLoader.addMod(ModLoader.java:274)
    at ModLoader.readFromModFolder(ModLoader.java:1179)
    at ModLoader.init(ModLoader.java:824)
    at ModLoader.AddAllRenderers(ModLoader.java:186)
    at aam.(aam.java:61)
    at aam.(aam.java:10)
    at net.minecraft.client.Minecraft.a(SourceFile:259)
    at net.minecraft.client.Minecraft.run(SourceFile:629)
    at java.lang.Thread.run(Unknown Source)
    Caused by: java.lang.ClassNotFoundException: forge.IOreHandler
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 14 more
    --- END ERROR REPORT 181176ca ----------

    </init>

    Quote from ultimate_omega

    Upgrade Forge to 1.1.2

    Updated Forge then re did it and got this. It says I need Forge 1.1.2 but that's what I just installed. Is there a trick to updating Forge other than just dragging the new files to the .jar? If it wasn't for my world that I'm finally getting happy with I'd just wipe out everything and start from scratch. I'm afraid with a fresh install ID resolver might give things a different ID than before and ruin my save.

    Display Spoiler

    Mods loaded: 7
    ModLoader Beta 1.8.1
    mod_BuildCraftCore 2.2.2
    mod_BuildCraftBuilders 2.2.2
    mod_BuildCraftEnergy 2.2.2
    mod_BuildCraftFactory 2.2.2
    mod_BuildCraftTransport 2.2.2
    mod_EE 1.8.1

    Minecraft has crashed!
    ----------------------

    Minecraft has stopped running because it encountered a problem.

    If you wish to report this, please copy this entire text and email it to support@mojang.com.
    Please include a description of what you did when the error occured.


    --- BEGIN ERROR REPORT e872e214 --------
    Generated 10/29/11 6:41 PM

    Minecraft: Minecraft Beta 1.8.1
    OS: Windows 7 (amd64) version 6.1
    Java: 1.6.0_27, Sun Microsystems Inc.
    VM: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
    LWJGL: 2.4.2
    OpenGL: GeForce 9400M/PCI/SSE2 version 3.3.0, NVIDIA Corporation

    java.lang.RuntimeException: IndustrialCraft 2: MinecraftForge Too Old, need at least 1.1.2
    at forge.MinecraftForge.killMinecraft(MinecraftForge.java:184)
    at forge.MinecraftForge.versionDetect(MinecraftForge.java:204)
    at mod_IC2.initialize(mod_IC2.java:258)
    at ic2.platform.Ic2.<init>(Ic2.java:49)
    at mod_IC2.<init>(mod_IC2.java:13)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at java.lang.Class.newInstance0(Unknown Source)
    at java.lang.Class.newInstance(Unknown Source)
    at ModLoader.addMod(ModLoader.java:275)
    at ModLoader.readFromModFolder(ModLoader.java:1179)
    at ModLoader.init(ModLoader.java:824)
    at ModLoader.AddAllRenderers(ModLoader.java:186)
    at aam.<init>(aam.java:61)
    at aam.<clinit>(aam.java:10)
    at net.minecraft.client.Minecraft.a(SourceFile:259)
    at net.minecraft.client.Minecraft.run(SourceFile:629)
    at java.lang.Thread.run(Unknown Source)
    --- END ERROR REPORT f9a17909 ----------


    try installing it to fresh jar , that's what i did

    Ever notice when forums have a suggestion board, there's a small group of idiots who just hang around that little forum section? Yeah, I'm one of those guys. (c) by That one guy

    Quote from ultimate_omega

    The only way that the world can get messed up and corrupted is if you had a custom config in there somewhere.

    What I'm worried about is the Item and Block IDs. I used the ID Resolver add on to get rid of conflicts and I'm not sure if the savefile that has the list of ID conversions will work by just pasting it in the new install. I guess we'll see.

    ID list is in config folder, if you didnt deleted it , it's safe

    edit: yay, 100th post :D

    Ever notice when forums have a suggestion board, there's a small group of idiots who just hang around that little forum section? Yeah, I'm one of those guys. (c) by That one guy