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Hi I was wondering if anyone could tell me what caused this crash, would be much appreciated. Thanks

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 6/15/15 8:26 PM
Description: Exception while updating neighbours

java.lang.NullPointerException: Exception while updating neighbours
at net.minecraft.block.BlockRail.func_150048_a(SourceFile:31)
at net.minecraft.block.BlockRailBase.func_149695_a(BlockRailBase.java:154)
at net.minecraft.world.World.func_147460_e(World.java:697)
at net.minecraft.world.World.func_147459_d(World.java:650)
at buildcraft.factory.TileTank.func_145845_h(TileTank.java:85)
at net.minecraft.world.World.func_72939_s(World.java:1939)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
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.block.BlockRail.func_150048_a(SourceFile:31)
at net.minecraft.block.BlockRailBase.func_149695_a(BlockRailBase.java:154)

-- Block being updated --
Details:
Source block type: ID #-1
Block type: ID #66 (tile.rail // net.minecraft.block.BlockRail)
Block data value: 1 / 0x1 / 0b0001
Block location: World: (-78,64,-330), Chunk: (at 2,4,6 in -5,-21; contains blocks -80,0,-336 to -65,255,-321), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Stacktrace:
at net.minecraft.world.World.func_147460_e(World.java:697)
at net.minecraft.world.World.func_147459_d(World.java:650)
at buildcraft.factory.TileTank.func_145845_h(TileTank.java:85)

-- Block entity being ticked --
Details:
Name: net.minecraft.src.buildcraft.factory.TileTank // buildcraft.factory.TileTank
Block type: ID #189 (tile.tankBlock // buildcraft.factory.BlockTank)
Block data value: 0 / 0x0 / 0b0000
Block location: World: (-78,65,-330), Chunk: (at 2,4,6 in -5,-21; contains blocks -80,0,-336 to -65,255,-321), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Actual block type: ID #189 (tile.tankBlock // buildcraft.factory.BlockTank)
Actual block data value: 0 / 0x0 / 0b0000
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1939)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:489)

-- Affected level --
Details:
Level name: PahiWorld
All players: 2 total; [EntityPlayerMP['dylanh49'/279428, l='PahiWorld', x=-166.49, y=68.00, z=-468.25], EntityPlayerMP['Greencake'/309286, l='PahiWorld', x=-74.34, y=64.00, z=-330.19]]
Chunk stats: ServerChunkCache: 596 Drop: 0
Level seed: 8260193042054800318
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: World: (64,64,-398), Chunk: (at 0,4,2 in 4,-25; contains blocks 64,0,-400 to 79,255,-385), Region: (0,-1; contains chunks 0,-32 to 31,-1, blocks 0,0,-512 to 511,255,-1)
Level time: 9044487 game time, 2789176 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 41688 (now: false), thunder time: 20852 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:636)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:334)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Linux (amd64) version 2.6.32-042stab106.4
Java Version: 1.8.0_05, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 202246936 bytes (192 MB) / 661757952 bytes (631 MB) up to 869728256 bytes (829 MB)
JVM Flags: 8 total; -Xms32M -Xmx857M -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 96
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.3.1408 57 mods loaded, 57 mods active
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.3.1408-1.7.10-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forge{10.13.3.1408} [Minecraft Forge] (forge-1.7.10-10.13.3.1408-1.7.10-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CodeChickenCore{1.0.6.43} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NotEnoughItems{1.0.4.107} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.4.107-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
<CoFH ASM>{000} [CoFH ASM] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
IC2{2.2.731-experimental} [IndustrialCraft 2] (industrialcraft-2-2.2.731-experimental.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHCore{1.7.10R3.0.2} [CoFH Core] (CoFHCore-[1.7.10]3.0.2-262.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Core{7.0.8} [BuildCraft] (buildcraft-7.0.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Forestry{3.5.7.16} [Forestry for Minecraft] (forestry_1.7.10-3.5.7.16.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BinnieCore{2.0-pre10} [Binnie Core] (binnie-mods-2.0-pre10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Botany{2.0-pre10} [Botany] (binnie-mods-2.0-pre10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ExtraBees{2.0-pre10} [Extra Bees] (binnie-mods-2.0-pre10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ExtraTrees{2.0-pre10} [Extra Trees] (binnie-mods-2.0-pre10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Genetics{2.0-pre10} [Genetics] (binnie-mods-2.0-pre10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
qmunitylib{1.0} [QmunityLib] (QmunityLib-1.7.10-0.1.114-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
bluepower{0.2.945} [Blue Power] (BluePower-1.7.10-0.2.945-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Builders{7.0.8} [BC Builders] (buildcraft-7.0.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Energy{7.0.8} [BC Energy] (buildcraft-7.0.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Robotics{7.0.8} [BC Robotics] (buildcraft-7.0.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Silicon{7.0.8} [BC Silicon] (buildcraft-7.0.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Transport{7.0.8} [BC Transport] (buildcraft-7.0.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
BuildCraft|Factory{7.0.8} [BC Factory] (buildcraft-7.0.8.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ChickenChunks{1.3.4.19} [ChickenChunks] (ChickenChunks-1.7.10-1.3.4.19-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CompactSolars{4.4.39.315} [Compact Solar Arrays] (CompactSolars-1.7.10-4.4.39.315-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ComputerCraft{1.73} [ComputerCraft] (ComputerCraft1.73.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
EnderStorage{1.4.7.33} [EnderStorage] (EnderStorage-1.7.10-1.4.7.33-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ThermalFoundation{1.7.10R1.0.0} [Thermal Foundation] (ThermalFoundation-[1.7.10]1.0.0-81.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ThermalExpansion{1.7.10R4.0.1} [Thermal Expansion] (ThermalExpansion-[1.7.10]4.0.1-182.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
funkylocomotion{1.0} [Funky Locomotion] (funky-locomotion-1.7.10-beta-5c.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
GraviSuite{1.7.10-2.0.3} [Graviation Suite] (GraviSuite-1.7.10-2.0.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
inventorytweaks{1.59-dev-152-cf6e263} [Inventory Tweaks] (InventoryTweaks-1.59-dev-152.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
IronChest{6.0.60.741} [Iron Chest] (ironchest-1.7.10-6.0.60.741-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
JABBA{1.2.1} [JABBA] (Jabba-1.2.1a_1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
LogisticsPipes{0.9.1.15} [Logistics Pipes] (logisticspipes-0.9.1.15.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Railcraft{9.6.1.0} [Railcraft] (Railcraft_1.7.10-9.6.1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
MagicBees{1.7.10-2.3.1} [Magic Bees] (magicbees-1.7.10-2.3.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Mystcraft{0.11.11.00} [Mystcraft] (mystcraft-1.7.10-0.11.11.00.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NEIAddons{1.12.9.32} [NEI Addons] (neiaddons-1.12.9.32-mc1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NEIAddons|AppEng{1.12.9.32} [NEI Addons: Applied Energistics 2] (neiaddons-1.12.9.32-mc1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NEIAddons|Botany{1.12.9.32} [NEI Addons: Botany] (neiaddons-1.12.9.32-mc1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NEIAddons|Forestry{1.12.9.32} [NEI Addons: Forestry] (neiaddons-1.12.9.32-mc1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NEIAddons|CraftingTables{1.12.9.32} [NEI Addons: Crafting Tables] (neiaddons-1.12.9.32-mc1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
NEIAddons|ExNihilo{1.12.9.32} [NEI Addons: Ex Nihilo] (neiaddons-1.12.9.32-mc1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
neiintegration{1.0.9} [NEI Integration] (NEIIntegration-MC1.7.10-1.0.9.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
StevesCarts{2.0.0.b18} [Steve's Carts 2] (StevesCarts2.0.0.b18.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
StevesWorkshop{0.5.1} [Steve's Workshop] (StevesWorkshop-0.5.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ThermalDynamics{1.7.10R1.0.0} [Thermal Dynamics] (ThermalDynamics-[1.7.10]1.0.0-122.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Translocator{1.1.1.14} [Translocator] (Translocator-1.7.10-1.1.1.14-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForgeMultipart{1.1.2.331} [Forge Multipart] (ForgeMultipart-1.7.10-1.1.2.331-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
WR-CBE|Core{1.4.1.9} [WR-CBE Core] (WR-CBE-1.7.10-1.4.1.9-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
WR-CBE|Addons{1.4.1.9} [WR-CBE Addons] (WR-CBE-1.7.10-1.4.1.9-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
WR-CBE|Logic{1.4.1.9} [WR-CBE Logic] (WR-CBE-1.7.10-1.4.1.9-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
Baubles{1.0.1.10} [Baubles] (Baubles-1.7.10-1.0.1.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
McMultipart{1.1.2.331} [Minecraft Multipart Plugin] (ForgeMultipart-1.7.10-1.1.2.331-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
ForgeMicroblock{1.1.2.331} [Forge Microblocks] (ForgeMultipart-1.7.10-1.1.2.331-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available->Available->Available->Available
CoFHCore: -[1.7.10]3.0.2-262
ThermalFoundation: -[1.7.10]1.0.0-81
ThermalExpansion: -[1.7.10]4.0.1-182
ThermalDynamics: -[1.7.10]1.0.0-122
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Player Count: 2 / 10; [EntityPlayerMP['dylanh49'/279428, l='PahiWorld', x=-166.49, y=68.00, z=-468.25], EntityPlayerMP['Greencake'/309286, l='PahiWorld', x=-74.34, y=64.00, z=-330.19]]
Is Modded: Definitely; Server brand changed to 'fml,forge'
Type: Dedicated Server (map_server.txt)

some buildcraft tank is causeing you to crash

Thank you very much!

Quote from Greencake46»

Thank you very much!

did i help ?

Quote from redradman123»

did i help ?

yes you did, i went into mcedit and deleted the tank, and the problem was resolved!