Forge server crashing on startup

[Bobbelty]

My server keeps crashing, I have forge 1.7.2-10.12.2.1147 and I only have 1 mod.

How do I fix this? please help me

Here is the crash report

 

---- Minecraft Crash Report ----

// Everything's going to plan. No, really, that was supposed to happen.

 

Time: 2014-09-21 09:15

Description: Exception in server tick loop

 

cpw.mods.fml.common.LoaderException: java.lang.NoSuchFieldError: field_150354_m

at cpw.mods.fml.common.LoadController.transition(LoadController.java:162)

at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:514)

at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:88)

at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:313)

at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:114)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)

at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:670)

Caused by: java.lang.NoSuchFieldError: field_150354_msds

at biomesoplenty.common.world.generation.WorldGenFieldAssociation.associateFeatures(WorldGenFieldAssociation.java:56)

at biomesoplenty.common.world.generation.WorldGenFieldAssociation.init(WorldGenFieldAssociation.java:50)

at biomesoplenty.BiomesOPlenty.preInit(BiomesOPlenty.java:61)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:513)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:208)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:47)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:118)

at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:512)

... 5 more

 

 

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

 

-- System Details --

Details:

Minecraft Version: 1.7.2

Operating System: Mac OS X (x86_64) version 10.6.8

Java Version: 1.6.0_65, Apple Inc.

Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Apple Inc.

Memory: 3153361080 bytes (3007 MB) / 3212509184 bytes (3063 MB) up to 3212509184 bytes (3063 MB)

JVM Flags: 2 total; -Xmx3072M -Xms3072M

AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

FML: MCP v9.03 FML v7.2.217.1147 Minecraft Forge 10.12.2.1147 4 mods loaded, 4 mods active

mcp{9.03} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized

FML{7.2.217.1147} [Forge Mod Loader] (forge-1.7.2-10.12.2.1147-universal.jar) Unloaded->Constructed->Pre-initialized

Forge{10.12.2.1147} [Minecraft Forge] (forge-1.7.2-10.12.2.1147-universal.jar) Unloaded->Constructed->Pre-initialized

BiomesOPlenty{2.1.0} [biomes O' Plenty] (BiomesOPlenty-1.7.10-2.1.0.991-universal.jar) Unloaded->Constructed->Errored

Profiler Position: N/A (disabled)

Is Modded: Definitely; Server brand changed to 'fml,forge'

Type: Dedicated Server (map_server.txt)