---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 9/12/12 5:54
Description: Exception in server tick loop

java.lang.NullPointerException
	at xv.i(World.java:1929)
	at yv.a(SourceFile:73)
	at yv.a(SourceFile:27)
	at yr.a(SourceFile:217)
	at aau.a(SourceFile:450)
	at im.a(ChunkProviderServer.java:242)
	at zs.a(Chunk.java:1239)
	at im.c(ChunkProviderServer.java:137)
	at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:313)
	at bdo.a(IntegratedServer.java:71)
	at bdo.c(IntegratedServer.java:87)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:461)
	at fy.run(SourceFile:856)


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

-- System Details --
Details:
	Minecraft Version: 1.4.5
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_02, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 557823072 bytes (531 MB) / 658440192 bytes (627 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -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: 3, tallocated: 63
	FML: MCP v7.23 FML v4.5.17.479 Minecraft Forge 6.4.1.426 21 mods loaded, 21 mods active
	mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	mod_CodeChickenCore [CodeChicken Core] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	mod_NotEnoughItems [Not Enough Items] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	mod_ReiMinimap [mod_ReiMinimap] ([1.4.5]ReiMinimap_v3.2_05.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	BuildCraft|Core [BuildCraft] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	BuildCraft|Builders [BC Builders] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	BuildCraft|Energy [BC Energy] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	BuildCraft|Factory [BC Factory] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	BuildCraft|Transport [BC Transport] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	BuildCraft|Silicon [BC Silicon] (buildcraft-A-3.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	ExtrabiomesXL [ExtrabiomesXL] (ExtrabiomesXL-universal-1.4.5-3.6.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	Forestry [Forestry for Minecraft] (forestry-A-1.6.2.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	ImmibisCore [Immibis Core] (immibis-core_51.0.4_for_1.4.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	IronChest [Iron Chest] (ironchest-universal-4.4.0.194.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	Mystcraft [Mystcraft] (mystcraft-uni-1.4.4-0.9.4.05.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	NEIPlugins [NEI Plugins] (NEIPlugins-1.0.3.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	Railcraft [Railcraft] (Railcraft_1.4.5b-6.10.0.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	StevesCarts [Steve's Carts] (StevesCarts2.0.0.a34.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	Tubestuff [Tubestuff] (tubestuff_51.0.3_for_1.4.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Player Count: 0 / 8; []
	Type: Integrated Server (map_client.txt)
	Is Modded: Definitely; Client brand changed to 'forge,fml'