Hola, me gustaria que ayudanse , si pueden, no se por que al iniciar minecraft me sale este error

Mods loaded: 3
ModLoader 1.2.5
mod_ReiMinimap v3.0_06 [1.2.5]
mod_TooManyItems 1.2.5 2012-04-13

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

Minecraft has stopped running because it encountered a problem.




--- BEGIN ERROR REPORT c21a6311 --------
Generated 04-22-12 01:36 PM

Minecraft: Minecraft 1.2.5
OS: Windows 7 (x86) version 6.1
Java: 1.6.0_22, Sun Microsystems Inc.
VM: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
LWJGL: 2.4.2
OpenGL: AMD Radeon HD 6310 Graphics version 4.1.10429 Compatibility Profile Context, ATI Technologies Inc.

java.lang.NoSuchFieldError: cfgGrassFix
at ModLoader.init(ModLoader.java:905)
at ModLoader.addAllRenderers(ModLoader.java:189)
at ahu.<init>(ahu.java:77)
at ahu.<clinit>(ahu.java:8)
at net.minecraft.client.Minecraft.a(SourceFile:273)
at net.minecraft.client.Minecraft.run(SourceFile:657)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 302a7f7a ----------




Si lo sabies decidmelo, porfavor