进游戏时出现的，然后游戏就自动关了
Mods loaded: 28
ModLoader Beta 1.8.1
mod_BuildCraftCore 2.2.3
mod_BuildCraftBuilders 2.2.3
mod_BuildCraftEnergy 2.2.3
mod_BuildCraftFactory 2.2.3
mod_BuildCraftTransport 2.2.3
mod_cjb_cheats 4.8.1
mod_cjb_hardcore 4.8.1
mod_cjb_items 4.8.1
mod_cjb_itemspawner 4.8.1
mod_cjb_main 4.8.1
mod_cjb_minimap 4.8.1
mod_cjb_mobfilter 4.8.1
mod_cjb_mobs 4.8.1
mod_cjb_moreinfo 4.8.1
mod_cjb_teleport 4.8.1
mod_cjb_x_ray 4.8.1
mod_Conveyor Beta 1.7.3
mod_FlipFlop Beta 1.7.3
mod_PortalGun 1.8.1v1
mod_Backpack Beta 1.8.1
mod_CiviHome Villager Housing
mod_CiviMobs Civilization
mod_ClayMan Beta 1.7.3
mod_IC2 v1.23
mod_RecipeBook Beta 1.8
mod_Shelf Beta 1.8
mod_WirelessRedstone 1.4
      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 dc1e61e5 --------
Generated 11-10-29 下午3:41
Minecraft: Minecraft Beta 1.8.1
OS: Windows 7 (x86) version 6.1
Java: 1.6.0_29, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: GeForce GT 425M/PCI/SSE2 version 4.1.0, NVIDIA Corporation
java.lang.IllegalArgumentException: Slot 168 is already occupied by BlockKHome2@e4e358 when adding buildcraft.builders.BlockBuilder@109dc35
at lr.<init>(Block.java:51)
at zt.<init>(BlockContainer.java:16)
at buildcraft.builders.BlockBuilder.<init>(BlockBuilder.java:30)
at BuildCraftBuilders.initialize(BuildCraftBuilders.java:74)
at mod_BuildCraftBuilders.ModsLoaded(mod_BuildCraftBuilders.java:32)
at ModLoader.init(ModLoader.java:616)
at ModLoader.AddAllRenderers(ModLoader.java:141)
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 9b0b9421 ----------
这是神魔意思