Mc 1.2.3 crachs whit Railcraft help

  • Hi,
    i have Mc 1.2.3 and i install Railcraft_Client_4.1.4 and then its crachs :

    Display Spoiler

    Mods loaded: 24
    ModLoader 1.2.3
    mod_ModLoaderMp 1.2.3v3
    mod_MinecraftForge 1.4.0.57
    mod_NotEnoughItems 1.2.0
    mod_BuildCraftCore 3.1.4
    mod_BuildCraftBuilders 3.1.4
    mod_BuildCraftEnergy 3.1.4
    mod_BuildCraftFactory 3.1.4
    mod_BuildCraftTransport 3.1.4
    mod_BuildCraftSilicon 3.1.4
    mod_zAdditionalPipes 3.0.1 (Minecraft 1.2.3, Buildcraft 3.1.4, Forge 1.4.1.59)
    mod_CCTurtle 1.31
    mod_ComputerCraft 1.31
    mod_ccSensors 0.1_MC1.1.0
    mod_IC2 v1.81
    mod_BCIC2Crossover IBv0.07 for MC 1.2.3, BC 3.1.4, IC2 1.81
    mod_zAdvancedSolarPanel v2.1.0
    mod_Railcraft 4.1.4
    mod_RedPowerCore 2.0pr4e
    mod_RedPowerLighting 2.0pr4e
    mod_RedPowerLogic 2.0pr4e
    mod_RedPowerWiring 2.0pr4e
    mod_Timber 1.2.3
    mod_WirelessRedstone 1.5

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

    Minecraft has stopped running because it encountered a problem.


    --- BEGIN ERROR REPORT 2edae264 --------
    Generated 01.04.12 23:41

    Minecraft: Minecraft 1.2.3
    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 GT 430/PCI/SSE2 version 4.2.0, NVIDIA Corporation

    java.lang.NoClassDefFoundError: forge/IItemRenderer
    at railcraft.common.modules.RailcraftModuleManager.loadModules(RailcraftModuleManager.java:41)
    at mod_Railcraft.load(mod_Railcraft.java:58)
    at ModLoader.init(ModLoader.java:890)
    at ModLoader.addAllRenderers(ModLoader.java:186)
    at aho.<init>(aho.java:79)
    at aho.<clinit>(aho.java:9)
    at net.minecraft.client.Minecraft.a(Minecraft.java:395)
    at net.minecraft.client.Minecraft.run(Minecraft.java:732)
    at java.lang.Thread.run(Unknown Source)
    Caused by: java.lang.ClassNotFoundException: forge.IItemRenderer
    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 java.lang.ClassLoader.loadClass(Unknown Source)
    ... 9 more
    --- END ERROR REPORT 9e825ebe ----------

    thx for help

    sry for bad english -> im german