Hey all, i normally dont have problems with understanding what an error means but this is new. May you tell me what causes it ?
Code
Mods loaded: 18
ModLoader 1.0.0
mod_idchecker 1.0.0
mod_ModLoaderMp 1.0.0
mod_BuildCraftCore 2.2.11
mod_BuildCraftBuilders 2.2.11
mod_BuildCraftEnergy 2.2.11
mod_BuildCraftFactory 2.2.11
mod_BuildCraftTransport 2.2.11
mod_zAdditionalPipes Rev31.4
mod_IC2 v1.43
mod_IC2AdvancedMachines v3.1
mod_RedPowerArray 2.0pr4c
mod_RedPowerCore 2.0pr4c
mod_RedPowerLighting 2.0pr4c
mod_RedPowerLogic 2.0pr4c
mod_RedPowerMachine 2.0pr4c
mod_RedPowerWiring 2.0pr4c
mod_RedPowerWorld 2.0pr4c
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 dce67d8d --------
Generated 18.01.12 16:37
Minecraft: Minecraft 1.0.0
OS: Windows Vista (x86) version 6.0
Java: 1.6.0_30, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: GeForce G100/PCI/SSE2 version 3.3.0, NVIDIA Corporation
java.lang.NoSuchMethodError: yy.hasTileEntity(I)Z
at zx.a(Chunk.java:455)
at ry.d(World.java:511)
at ky.a(SourceFile:57)
at ql.a(SourceFile:238)
at ql.b(SourceFile:252)
at ql.a(SourceFile:69)
at ql.a(SourceFile:28)
at sr.a(SourceFile:190)
at xj.a(SourceFile:480)
at jz.a(jz.java:125)
at zx.a(Chunk.java:936)
at jz.a(jz.java:68)
at jz.b(jz.java:76)
at ry.c(World.java:470)
at ry.a(World.java:403)
at net.minecraft.client.Minecraft.e(SourceFile:1895)
at net.minecraft.client.Minecraft.a(SourceFile:1803)
at net.minecraft.client.Minecraft.a(SourceFile:1767)
at net.minecraft.client.Minecraft.a(SourceFile:1655)
at xz.e(SourceFile:161)
at pb.a(SourceFile:209)
at jn.a(SourceFile:152)
at xz.a(SourceFile:181)
at adt.b(EntityRenderer.java:805)
at EntityRendererProxy.b(EntityRendererProxy.java:15)
at net.minecraft.client.Minecraft.x(SourceFile:738)
at net.minecraft.client.Minecraft.run(SourceFile:658)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 64ff4f38 ----------
It was ID Checker 