Tekkit 3 Crashes at start

[wannabe]

--- BEGIN ERROR REPORT 656ae47 --------

Generated 28.05.12 11:59

Minecraft: Minecraft 1.2.5

OS: Windows 7 (x86) version 6.1

Java: 1.7.0_04, Oracle Corporation

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

LWJGL: 2.4.2

OpenGL: AMD Radeon HD 6900 Series version 4.2.11631 Compatibility Profile Context, ATI Technologies Inc.

java.lang.NoSuchMethodError: acy.<init>(I)V

at CraftGuide.ItemCraftGuide.<init>(ItemCraftGuide.java:21)

at mod_CraftGuide.addItems(mod_CraftGuide.java:48)

at mod_CraftGuide.load(mod_CraftGuide.java:41)

at ModLoader.init(ModLoader.java:891)

at ModLoader.addAllRenderers(ModLoader.java:189)

at ahu.<init>(RenderManager.java:86)

at ahu.<clinit>(RenderManager.java:14)

at net.minecraft.client.Minecraft.a(Minecraft.java:394)

at net.minecraft.client.Minecraft.run(Minecraft.java:732)

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

--- END ERROR REPORT bd8becde ----------

I'd be glad, if anyone could hint me in a general direction to fix that, thanks.