Hello,

 

I've added a custom biome, but everytime I try to create a new world it just stops at "Creating World" and gives me this error.

 

2013-02-20 19:21:29 [iNFO] [sTDERR] java.lang.NullPointerException
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.world.World.getTopSolidOrLiquidBlock(World.java:1967)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.world.biome.BiomeDecorator.decorate(BiomeDecorator.java:226)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.world.biome.BiomeDecorator.decorate(BiomeDecorator.java:203)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.world.biome.BiomeGenBase.decorate(BiomeGenBase.java:367)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.world.gen.ChunkProviderGenerate.populate(ChunkProviderGenerate.java:577)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.world.gen.ChunkProviderServer.populate(ChunkProviderServer.java:258)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.world.chunk.Chunk.populateChunk(Chunk.java:1258)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:153)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.server.MinecraftServer.initialWorldChunkLoad(MinecraftServer.java:310)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.server.integrated.IntegratedServer.loadAllWorlds(IntegratedServer.java:84)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.server.integrated.IntegratedServer.startServer(IntegratedServer.java:100)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
2013-02-20 19:21:29 [iNFO] [ForgeModLoader] Unloading dimension 0
2013-02-20 19:21:29 [iNFO] [ForgeModLoader] Unloading dimension -1
2013-02-20 19:21:29 [iNFO] [ForgeModLoader] Unloading dimension 1
2013-02-20 19:21:29 [sEVERE] [ForgeModLoader] Fatal errors were detected during the transition from AVAILABLE to SERVER_STOPPED. Loading cannot continue
2013-02-20 19:21:29 [sEVERE] [ForgeModLoader] 
mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
mod_3rdimpact [mod_3rdimpact] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
mod_biomwasteland [mod_biomwasteland] (bin) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available
2013-02-20 19:21:29 [sEVERE] [ForgeModLoader] The following problems were captured during this phase
2013-02-20 19:21:29 [iNFO] [sTDERR] Exception in thread "Server thread" cpw.mods.fml.common.LoaderException
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at cpw.mods.fml.common.LoadController.transition(LoadController.java:117)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at cpw.mods.fml.common.Loader.serverStopped(Loader.java:752)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at cpw.mods.fml.common.FMLCommonHandler.handleServerStopped(FMLCommonHandler.java:459)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:559)
2013-02-20 19:21:29 [iNFO] [sTDERR] 	at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
2013-02-20 19:48:23 [iNFO] [sTDERR] Someone is closing me!

 

I just can't figure out whats doing it and only removing the whole code stops the error. Help!

well what is at line (World.java:1967)? Why is it saying its null?

Protip: Your block ids are fucked up they cant be > 256 -.-