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minecraft keeps crashing i have installed simplyhorses and it wont let me play i have tryed deleting the bin folder then force updating and re-installing simplyhorses but it wont work the crash report said





Minecraft has stopped running because it encountered a problem; Failed to start game

A full error report has been saved to /Users/guestuser/Library/Application Support/minecraft/crash-reports/crash-2013-06-03_08.23.41-client.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash



--- BEGIN ERROR REPORT 7424d444 --------
Full report at:
/Users/guestuser/Library/Application Support/minecraft/crash-reports/crash-2013-06-03_08.23.41-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 6/3/13 8:23 AM

-- System Details --
Details:
Minecraft Version: 1.5.2
Operating System: Mac OS X (x86_64) version 10.7.5
Java Version: 1.6.0_43, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 465623552 bytes (444 MB) / 534708224 bytes (509 MB) up to 1069416448 bytes (1019 MB)
JVM Flags: 3 total; -Xbootclasspath/a:/System/Library/PrivateFrameworks/JavaApplicationLauncher.framework/Resources/LauncherSupport.jar -Xms512M -Xmx1024M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: FML and Forge are installed
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v7.51 FML v5.2.2.684 Minecraft Forge 7.8.0.684 4 mods loaded, 4 mods active
mcp{7.44} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized
FML{5.2.2.684} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
Forge{7.8.0.684} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
SimplyHorses{0.6.3} [Simply Horses] (Simply-Horses-Mod-1.5.2) Unloaded->Constructed->Pre-initialized->Errored
LWJGL: 2.4.2
OpenGL: NVIDIA GeForce 9400M OpenGL Engine GL version 2.1 NVIDIA-7.32.12, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Texture Pack: DokuCraft - The Saga Continues 1.4.6 - Light.zip
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

cpw.mods.fml.common.LoaderException: java.lang.NoSuchMethodError: net.minecraft.world.WorldType.addNewBiome(Lnet/minecraft/world/biome/BiomeGenBase;)V
at cpw.mods.fml.common.LoadController.transition(LoadController.java:142)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:691)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:206)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:447)
at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
at net.minecraft.client.Minecraft.run(Minecraft.java:732)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.NoSuchMethodError: net.minecraft.world.WorldType.addNewBiome(Lnet/minecraft/world/biome/BiomeGenBase;)V
at cpw.mods.fml.common.registry.GameRegistry.addBiome(GameRegistry.java:290)
at simplyhorses.common.SimplyHorses.load(SimplyHorses.java:163)
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:494)
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:45)
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.propogateStateMessage(LoadController.java:165)
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:45)
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:98)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:690)
... 5 more
--- END ERROR REPORT 2e4de74 ----------






please help asap