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Ok so i was working on a modpack and i keep getting this error and can't figure out what has a duplicate id of 27 heres the crash report. This is a private modpack. at least for now. gotta wait permissions for the other mods to actually use it.

---- Minecraft Crash Report ----
// Oops.

Time: 9/13/16 4:23 PM
Description: Ticking memory connection

java.lang.IllegalArgumentException: Duplicate id value for 27!
at net.minecraft.entity.DataWatcher.func_75682_a(SourceFile:64)
at wehavecookies56.kk.core.extendedproperties.EntityPropertyDriveForm.<init>(EntityPropertyDriveForm.java:35)
at wehavecookies56.kk.core.extendedproperties.EntityPropertyDriveForm.register(EntityPropertyDriveForm.java:95)
at wehavecookies56.kk.core.event.EntityConstructEvent.onEntityConstructing(EntityConstructEvent.java:26)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_396_EntityConstructEvent_onEntityConstructing_EntityConstructing.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140)
at net.minecraft.entity.Entity.<init>(Entity.java:179)
at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:119)
at net.minecraft.entity.player.EntityPlayer.<init>(EntityPlayer.java:141)
at net.minecraft.entity.player.EntityPlayerMP.<init>(EntityPlayerMP.java:138)
at net.minecraft.server.management.ServerConfigurationManager.func_148545_a(ServerConfigurationManager.java:410)
at net.minecraft.server.network.NetHandlerLoginServer.func_147326_c(NetHandlerLoginServer.java:101)
at net.minecraft.server.network.NetHandlerLoginServer.func_147233_a(NetHandlerLoginServer.java:60)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:215)
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
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.entity.DataWatcher.func_75682_a(SourceFile:64)
at wehavecookies56.kk.core.extendedproperties.EntityPropertyDriveForm.<init>(EntityPropertyDriveForm.java:35)
at wehavecookies56.kk.core.extendedproperties.EntityPropertyDriveForm.register(EntityPropertyDriveForm.java:95)
at wehavecookies56.kk.core.event.EntityConstructEvent.onEntityConstructing(EntityConstructEvent.java:26)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_396_EntityConstructEvent_onEntityConstructing_EntityConstructing.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140)
at net.minecraft.entity.Entity.<init>(Entity.java:179)
at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:119)
at net.minecraft.entity.player.EntityPlayer.<init>(EntityPlayer.java:141)
at net.minecraft.entity.player.EntityPlayerMP.<init>(EntityPlayerMP.java:138)
at net.minecraft.server.management.ServerConfigurationManager.func_148545_a(ServerConfigurationManager.java:410)
at net.minecraft.server.network.NetHandlerLoginServer.func_147326_c(NetHandlerLoginServer.java:101)
at net.minecraft.server.network.NetHandlerLoginServer.func_147233_a(NetHandlerLoginServer.java:60)
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:215)

-- Ticking connection --
Details:
Connection: [email protected]
Stacktrace:
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:111)
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: Windows 10 (x86) version 10.0
Java Version: 1.8.0_101, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 180376864 bytes (172 MB) / 523501568 bytes (499 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 46 mods loaded, 46 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJAAAA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJAAAA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1614-1.7.10.jar)
UCHIJAAAA Forge{10.13.4.1614} [Minecraft Forge] (forge-1.7.10-10.13.4.1614-1.7.10.jar)
UCHIJAAAA OpenComputers|Core{1.6.0.7-rc.1} [OpenComputers (Core)] (minecraft.jar)
UCHIJAAAA RenderPlayerAPI{1.4} [Render Player API] (minecraft.jar)
UCHIJAAAA dynamicswordskills{1.7.10-1.7} [Dynamic Sword Skills] (1.7.10-dynamicswordskills-1.7.jar)
UCHIJAAAA bspkrsCore{6.16} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.16.jar)
UCHIJAAAA ArmorStatusHUD{1.28} [ArmorStatusHUD] ([1.7.10]ArmorStatusHUD-client-1.28.jar)
UCHIJAAAA StartingInventory{1.7.10.r03} [StartingInventory] ([1.7.10]StartingInventory-universal-1.7.10.r03.jar)
UCHIJAAAA nevermine{1.1.1} [Nevermine] (AdventOfAscensionV2.0.jar)
UCHIJAAAA adventurebackpack{1.7.10-0.8b} [Adventure Backpack] (adventurebackpack-1.7.10-0.8c.jar)
UCHIJAAAA armourersWorkshop{1.7.10-0.26.1.55} [Armourer's Workshop] (Armourers-Workshop-Mod-1.7.10.jar)
UCHIJAAAA betterquesting{1.0.155} [Better Questing] (BetterQuesting-1.0.155.jar)
UCHIJAAAA BrandonsCore{1.0.0.12} [Brandon's Core] (BrandonsCore-1.0.0.12.jar)
UCHIJAAAA CarpentersBlocks{3.3.8} [Carpenter's Blocks] (Carpenters-Blocks-Mod-1.7.10.jar)
UCHIJAAAA CustomMainMenu{1.9.2} [Custom Main Menu] (Custom-Main-Menu-Mod-1.7.10.jar)
UCHIJAAAA customnpcs{1.7.10d} [CustomNpcs] (Custom-NPCs-Mod-1.7.10.jar)
UCHIJAAAA CustomPets{1.0.5} [Custom Pets] (custompets-1.7.10-1.0.5-universal.jar)
UCHIJAAAA endercore{1.7.10-0.2.0.36_beta} [EnderCore] (EnderCore-1.7.10-0.2.0.36_beta.jar)
UCHIJAAAA customthings{MC1.7.10-0.0.3-52} [CustomThings] (CustomThings-MC1.7.10-0.0.3-52.jar)
UCHIJAAAA DraconicEvolution{1.0.2h} [Draconic Evolution] (Draconic-Evolution-1.7.10-1.0.2h.jar)
UCHIJAAAA EE3{0.3.0.547} [Equivalent Exchange 3] (EquivalentExchange3-1.7.10-0.3.0.547.jar)
UCHIJAAAA FoodExpansion{1.0} [Food Expansion] (FoodExpansion1.1.1-mc1.7.10.jar)
UCHIJAAAA FTBL{1.0.18.2} [FTBLib] (FTBLib-1.7.10-1.0.18.3.jar)
UCHIJAAAA grapplemod{1.7.10-v7} [Grappling hook mod] (grapplemod-1.7.10-v7.jar)
UCHIJAAAA hammertime{Hammer Time-1.7.10-1.3.6} [Hammer Time!] (HammerTime-1.3.6.jar)
UCHIJAAAA iChunUtil{4.2.2} [iChunUtil] (iChunUtil-4.2.2.jar)
UCHIJAAAA Hats{4.0.1} [Hats] (Hats-4.0.1.jar)
UCHIJAAAA HatStand{4.0.0} [HatStand] (HatStand-4.0.0.jar)
UCHIJAAAA instantblocks{1.5.4} [Instant Blocks] (InstantBlocks_v1.5.4.jar)
UCHIJAAAA kk{0.7.0.1.7.10} [Kingdom Keys] (Kingdom Keys-0.7.0.jar)
UCHIJAAAA kitchen{1.3.19} [The Kitchen Mod] (Kitchen-Mod-1.7.10.jar)
UCHIJAAAA lootablebodies{1.3.7} [DrCyano's Lootable Bodies] (Lootable-Bodies-Mod-1.7.10.jar)
UCHIJAAAA magicalcrops{4.0.0_PUBLIC_BETA_4b} [Magical Crops: Core] (magicalcrops-4.0.0_PUBLIC_BETA_5.jar)
UCHIJAAAA magicalcropsarmour{4.0.0_PUBLIC_BETA_4} [Magical Crops: Armoury] (magicalcropsarmoury-4.0.0_PUBLIC_BETA_4.jar)
UCHIJAAAA malisiscore{1.7.10-0.14.3} [MalisisCore] (MalisisCore-1.7.10.jar)
UCHIJAAAA malisisdoors{1.7.10-1.13.2} [Malisis' Doors] (MalisisDoors-Mod-1.7.10.jar)
UCHIJAAAA cfm{3.4.7} [§9MrCrayfish's Furniture Mod] (MrCrayfishs-Furniture-Mod-1.7.10.jar)
UCHIJAAAA MSM3{3.0.0d} [More Swords 3] (MSM-SNAP-3.0.0e-For-MC-1.7.10.jar)
UCHIJAAAA OpenComputers{1.6.0.7-rc.1} [OpenComputers] (OpenComputers-MC1.7.10-1.6.0.7-rc.1-universal.jar)
UCHIJAAAA opensecurity{1.0.94} [OpenSecurity] (OpenSecurity-1.7.10-1.0-94.jar)
UCHIJAAAA ResourceLoader{1.3} [Resource Loader] (ResourceLoader-MC1.7.10-1.3.jar)
UCHIJAAAA corerm{1.0c} [RikMuld's Core] (RikMuldsCore_1.0c.jar)
UCHIJAAAA RPGAdvMod{1.0.0} [RPGAdvMod] (RPGAdvMod-1.0.0_1.7.10.jar)
UCHIJAAAA camping{2.1g} [The Camping Mod 2] (TheCampingMod_2.1g.jar)
UCHIJAAAA XPT{1.2.9} [XP Teleporters] (XPTeleporters-1.7.10-1.2.9.jar)
GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
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 'fml,forge'