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I am playing on technic in my custom modpack of 118 mods. I have fixed all id conflicts and minecraft loads up, but when I click create new world it generates a little bit then my modpack crashes. Here is the crash report:
---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 3/2/14 12:35 PM
Description: Exception in server tick loop

java.lang.NullPointerException
at net.minecraft.world.World.func_72803_f(World.java:598)
at net.minecraft.world.gen.feature.WorldGenReed.func_76484_a(SourceFile:17)
at net.minecraft.world.biome.BiomeDecorator.func_76794_a(BiomeDecorator.java:359)
at net.minecraft.world.biome.BiomeDecorator.func_76796_a(BiomeDecorator.java:196)
at net.minecraft.world.biome.BiomeGenBase.func_76728_a(BiomeGenBase.java:371)
at net.minecraft.world.gen.ChunkProviderGenerate.func_73153_a(ChunkProviderGenerate.java:573)
at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:258)
at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1253)
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:153)
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:294)
at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:119)
at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:142)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:445)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)


The full report is at:http://pastebin.com/7AKTtGfL
What should I do?

Quote from silvernickel

What should I do?

Isolate the mod or group of mods that causes problem, add one by one, until you get a crash.

By the looks of it i suspect on extrabiomesXL, but i might be wrong.

Quote from GusarTranzit

Isolate the mod or group of mods that causes problem, add one by one, until you get a crash.

By the looks of it i suspect on extrabiomesXL, but i might be wrong.

It was I removed it and world generation worked Is there anyway I could put extrabiomes XL back in there?

Quote from silvernickel

It was I removed it and world generation worked Is there anyway I could put extrabiomes XL back in there?

I dont have a clue, i dont use it long time, had performace issues with it since 1.6.x updates, switched to Biomes'O'Plenty.