---- Minecraft Crash Report ----
// Oh - I know what I did wrong!

Time: 3/10/15 10:42 PM
Description: Exception getting block type in world

java.lang.NullPointerException: Exception getting block type in world
	at net.minecraft.world.gen.structure.StructureStart.func_75068_a(StructureStart.java:44)
	at fastcraft.Hooks.x(F:170)
	at net.minecraft.world.gen.structure.MapGenStructure.func_75051_a(MapGenStructure.java:93)
	at rwg.world.ChunkGeneratorRealistic.func_73153_a(ChunkGeneratorRealistic.java:452)
	at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:279)
	at fastcraft.a.c.a(F:84)
	at fastcraft.Hooks.r(F:139)
	at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1040)
	at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:190)
	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
	at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
	at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
	at net.minecraft.world.World.func_72964_e(World.java:419)
	at net.minecraft.world.World.func_147439_a(World.java:345)
	at net.minecraft.world.World.func_147466_a(World.java:2626)
	at net.minecraft.world.SpawnerAnimals.func_77190_a(SpawnerAnimals.java:308)
	at net.minecraft.world.SpawnerAnimals.func_77192_a(SpawnerAnimals.java:178)
	at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:161)
	at WorldServerOF.func_72835_b(WorldServerOF.java:234)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:625)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:186)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)


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

-- Head --
Stacktrace:
	at net.minecraft.world.gen.structure.StructureStart.func_75068_a(StructureStart.java:44)
	at fastcraft.Hooks.x(F:170)
	at net.minecraft.world.gen.structure.MapGenStructure.func_75051_a(MapGenStructure.java:93)
	at rwg.world.ChunkGeneratorRealistic.func_73153_a(ChunkGeneratorRealistic.java:452)
	at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:279)
	at fastcraft.a.c.a(F:84)
	at fastcraft.Hooks.r(F:139)
	at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1040)
	at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:190)
	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131)
	at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101)
	at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:199)
	at net.minecraft.world.World.func_72964_e(World.java:419)