Tekkit Crash upon loading

[kingn0thing013]

Title: Tekkit Crash upon loading

Version: 3.1.2

OS: Windows 7 Home Premium 64-bit 6 Gig Ram

Java Version: Java 7 Update 5

Description of Problem:

Starts loading, and crashes before game fully loads.

Error Messages:

Error Log:

--- BEGIN ERROR REPORT 8a378523 --------

Generated 8/15/12 2:28 PM



Minecraft: Minecraft 1.2.5

OS: Windows 7 (amd64) version 6.1

Java: 1.7.0_05, Oracle Corporation

VM: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

LWJGL: 2.4.2

OpenGL: Intel® HD Graphics version 2.1.0 - Build 8.15.10.2302, Intel



java.lang.IllegalArgumentException: Slot 255 is already occupied by mffs.BlockForceField@400b5e4d when adding mffs.BlockForceField@2a5c3214

	at pb.<init>(Block.java:251)

	at pb.<init>(Block.java:284)

	at agy.<init>(BlockContainer.java:13)

	at mffs.BlockForceField.<init>(BlockForceField.java:43)

	at mffs.mod_ModularForceFieldSystem.load(mod_ModularForceFieldSystem.java:115)

	at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:356)

	at cpw.mods.fml.common.Loader.modInit(Loader.java:273)

	at cpw.mods.fml.common.Loader.initializeMods(Loader.java:628)

	at cpw.mods.fml.client.FMLClientHandler.onLoadComplete(FMLClientHandler.java:223)

	at net.minecraft.client.Minecraft.a(Minecraft.java:429)

	at net.minecraft.client.Minecraft.run(Minecraft.java:738)

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

--- END ERROR REPORT b958ed98 ----------