i thought tekkit launcher couldnt have conflictions?

[l33tsco]

Mods loaded: 69

ModLoader 1.1

mod_CARuins v2.3.0

mod_ModLoaderMp 1.0.0

mod_NotEnoughItems 1.1.1

mod_Somnia v19 [1.1.0]

mod_HangableMaps 1.1

mod_MinecraftForge 1.3.3.14

mod_ReiMinimap v3.0_01 [1.1]

mod_IC2 v1.64

mod_IC2 v1.64

mod_RedPowerArray 2.0pr4d

mod_RedPowerCore 2.0pr4d

mod_RedPowerLighting 2.0pr4d

mod_RedPowerLogic 2.0pr4d

mod_RedPowerMachine 2.0pr4d

mod_RedPowerWiring 2.0pr4d

mod_RedPowerWorld 2.0pr4d

mod_Clevercraft 1.6.2

mod_ItemDescriptions 1.3

mod_EnderChest 1.0.1

mod_AdditionalBuildcraftObjects 0.9-63 (MC 1.1, BC 3.1.2)

mod_betterDungeons 0.921

mod_BuildCraftCore 3.1.3

mod_BuildCraftBuilders 3.1.3

mod_BuildCraftEnergy 3.1.3

mod_BuildCraftFactory 3.1.3

mod_BuildCraftTransport 3.1.3

mod_LogisticsPipes 0.1.8 (built with Minecraft 1.1.0, Buildcraft 3.1.2, Forge 1.3.1)

mod_LogisticsPipes 0.1.8 (built with Minecraft 1.1.0, Buildcraft 3.1.2, Forge 1.3.1)

mod_BuildCraftSilicon 3.1.3

mod_zAdditionalPipes Rev34.0

mod_CCTurtle 1.3

mod_ComputerCraft 1.3

mod_EE EE2 v1.0.0

mod_Forestry 1.3.2.1

mod_Forestry 1.3.2.1

mod_BuildCraftZFP (Forestry Package)

mod_BuildCraftZFP (Forestry Package)

mod_IC2AdvancedMachines v3.2

mod_InvTweaks 1.36 (1.1)

mod_InvTweaks 1.36 (1.1)

mod_MAtmos_forModLoader r10 for 1.1.x

mod_Millenaire 2.2

mod_Millenaire 2.2

mod_mocreatures v3.2.2 (MC 1.1)

mod_IC2_ChargingBench 1.64-1

mod_IC2_ChargingBench 1.64-1

mod_tome 1.0.0

mod_xpbook 1.0.0

mod_Zeppelin 1.1.0.0.25

mod_NetherOres 1.1.0R1.1.2

mod_RailcraftAutomation 3.2.1

mod_RailcraftBuildcraft 3.2.1

mod_RailcraftCore 3.2.1

mod_RailcraftExtras 3.2.1

mod_RailcraftFactory 3.2.1

mod_RailcraftInfrastructure 3.2.1

mod_RailcraftRails 3.2.1

mod_RailcraftAutomation 3.2.1

mod_RailcraftBuildcraft 3.2.1

mod_RailcraftExtras 3.2.1

mod_RailcraftFactory 3.2.1

mod_RailcraftInfrastructure 3.2.1

mod_RailcraftRails 3.2.1

mod_ThaumCraft 1.2

mod_treecapitator 1.1

Balkon's WeaponMod 1.1.0 v8.4.0 SMP Edition

mod_WirelessRedstone 1.5

mod_WirelessRedstoneClient 1.5

 

      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 [email protected].

Please include a description of what you did when the error occured.

 

 

 

--- BEGIN ERROR REPORT 6f2fd740 --------

Generated 6/26/12 10:05 PM

 

Minecraft: Minecraft 1.1

OS: Windows Vista (x86) version 6.0

Java: 1.7.0_04, Oracle Corporation

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

LWJGL: 2.4.2

OpenGL: Intel 965/963 Graphics Media Accelerator version 2.0.0 - Build 7.15.10.1666, Intel

 

java.lang.IllegalArgumentException: Slot 249 is already occupied by ic2.common.BlockTex@1f5f8d9 when adding ic2.common.BlockTex@1a4af2a

    at oe.<init>(Block.java:176)

    at oe.<init>(Block.java:204)

    at ic2.platform.BlockCommon.<init>(BlockCommon.java:12)

    at ic2.common.BlockTex.<init>(BlockTex.java:30)

    at mod_IC2.initialize(mod_IC2.java:238)

    at ic2.platform.Ic2.load(Ic2.java:65)

    at ModLoader.init(ModLoader.java:824)

    at ModLoader.AddAllRenderers(ModLoader.java:189)

    at afq.<init>(afq.java:80)

    at afq.<clinit>(afq.java:9)

    at net.minecraft.client.Minecraft.a(Minecraft.java:316)

    at net.minecraft.client.Minecraft.run(Minecraft.java:624)

    at java.lang.Thread.run(Unknown Source)

--- END ERROR REPORT 9b6f277f ----------

[l33tsco]

should i delete some classes or...?

[Aegis Fate]

Clear your cache, delete the folder you're trying to download to and redownload

[Torezu]

Or just look for duplicate copies of the same mod .zip files in your mods folder (IC2, in this case).