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I am trying to create a mod pack with the new curse client. I have got all the mods I want but when I try to launch it, it crashes and gives me this message.

---- Minecraft Crash Report ----
// Ouch. That hurt

Time: 3/27/15 2:43 PM
Description: There was a severe problem during mod loading that has caused the game to fail

cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: buildcraft/api/fuels/IronEngineCoolant$Coolant
at cpw.mods.fml.common.LoadController.transition(LoadController.java:162)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:695)
at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:288)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:541)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:867)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.NoClassDefFoundError: buildcraft/api/fuels/IronEngineCoolant$Coolant
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2693)
at java.lang.Class.privateGetPublicMethods(Class.java:2894)
at java.lang.Class.getMethods(Class.java:1607)
at stanhebben.zenscript.type.ZenTypeNative.complete(ZenTypeNative.java:157)
at minetweaker.runtime.GlobalRegistry.registerNativeClass(GlobalRegistry.java:95)
at minetweaker.MineTweakerAPI.registerClass(MineTweakerAPI.java:335)
at minetweaker.MineTweakerAPI.registerClassRegistry(MineTweakerAPI.java:276)
at minetweaker.MineTweakerAPI.registerClassRegistry(MineTweakerAPI.java:312)
at minetweaker.mc1710.MineTweakerMod.onPostInit(MineTweakerMod.java:147)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:513)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:208)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
at cpw.mods.fml.common.Loader.initializeMods(Loader.java:694)
... 10 more
Caused by: java.lang.ClassNotFoundException: buildcraft.api.fuels.IronEngineCoolant$Coolant
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 46 more
Caused by: java.lang.NullPointerException

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

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 8.1 (amd64) version 6.3
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 471539032 bytes (449 MB) / 965214208 bytes (920 MB) up to 1908932608 bytes (1820 MB)
JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2048m -Xms256m -XX:PermSize=256m
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 v7.10.85.1291 Minecraft Forge 10.13.2.1291 79 mods loaded, 79 mods active
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
FML{7.10.85.1291} [Forge Mod Loader] (forge-1.7.10-10.13.2.1291.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Forge{10.13.2.1291} [Minecraft Forge] (forge-1.7.10-10.13.2.1291.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
appliedenergistics2-core{rv1-stable-1} [AppliedEnergistics2 Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Aroma1997Core{1.0.2.13} [Aroma1997Core] (Aroma1997Core-1.7.10-1.0.2.13.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
CodeChickenCore{1.0.4.29} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
InfiniBows{1.3.0 build 20} [InfiniBows] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
NotEnoughItems{1.0.4.90} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.4.90-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
ThaumicTinkerer-preloader{0.1} [Thaumic Tinkerer Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
<CoFH ASM>{000} [CoFH ASM Data Initialization] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
deconstruction{2.2.5} [The Deconstruction Mod] ([MC1.7.10]deconstruction[v2.2.5].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
appliedenergistics2{rv1-stable-1} [Applied Energistics 2] (appliedenergistics2-rv1-stable-1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Aroma1997CoreHelper{1.0.2.13} [Aroma1997Core|Helper] (Aroma1997Core-1.7.10-1.0.2.13.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
AromaBackup{0.0.0.5} [AromaBackup] (AromaBackup-1.7.10-0.0.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BetterTitleScreen{1.7.10-1.1} [Better Title Screen] (BetterTitleScreen-1.7.10-1.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
qmunitylib{1.0} [QmunityLib] (QmunityLib-1.7.10-0.1.104-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
bluepower{0.2.918} [Blue Power] (BluePower-1.7.10-0.2.918-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
CoFHCore{1.7.10R3.0.0RC7} [CoFH Core] (CoFHCore-[1.7.10]3.0.0RC7-211.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Core{6.3.7} [BuildCraft] (buildcraft-6.3.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Transport{6.3.7} [BC Transport] (buildcraft-6.3.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Silicon{6.3.7} [BC Silicon] (buildcraft-6.3.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Builders{6.3.7} [BC Builders] (buildcraft-6.3.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Energy{6.3.7} [BC Energy] (buildcraft-6.3.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
BuildCraft|Factory{6.3.7} [BC Factory] (buildcraft-6.3.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
eureka{2.2} [Eureka] (Eureka-1.7.10-2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
bcadditions{2.0.2} [Buildcraft Additions] (BuildcraftAdditions-1.7.10-2.0.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
CompactMachines{1.7.10-1.17} [Compact Machines] (compactmachines-1.7.10-1.17.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
ComputerCraft{1.73} [ComputerCraft] (ComputerCraft1.73.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
customrecipes{4.72} [Custom Recipes] (customrecipes-1.7.10-4.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
D3Core{1.1.0.18} [D3Core] (D3Core-1.7.10-1.1.0.18.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
DurabilityShow{1.2.0} [Durability Show] (DurabilityShow-1.7.10-1.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
eplus{3.0.2-d} [Enchanting Plus] (EnchantingPlus-1.7.10-3.0.2-d.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded{1.7.10R2.8.0RC8} [MineFactory Reloaded] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
EnderIO{1.7.10-2.2.8.349} [Ender IO] (EnderIO-1.7.10-2.2.8.349.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
ThermalFoundation{1.7.10R1.0.0RC7} [Thermal Foundation] (ThermalFoundation-[1.7.10]1.0.0RC7-62.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
ThermalExpansion{1.7.10R4.0.0RC7} [Thermal Expansion] (ThermalExpansion-[1.7.10]4.0.0RC7-141.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
EnderTech{1.7.10-0.3.0.364} [EnderTech] (EnderTech-1.7.10-0.3.0.364.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Baubles{1.0.1.10} [Baubles] (Baubles-1.7.10-1.0.1.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
ExtraUtilities{1.2.2} [Extra Utilities] (extrautilities-1.2.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
funkylocomotion{1.0} [Funky Locomotion] (funky-locomotion-1.7.10-beta-5a.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Thaumcraft{4.2.3.5} [Thaumcraft] (Thaumcraft-1.7.10-4.2.3.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
gud_thaumicnei{1.2.3} [Thaumic NEI] (gud_thaumicnei-1.2.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
inventorytweaks{1.59-dev-152-cf6e263} [Inventory Tweaks] (InventoryTweaks-1.59-dev-152.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
IronChest{6.0.60.741} [Iron Chest] (ironchest-1.7.10-6.0.60.741-universal.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
JABBA{1.2.1} [JABBA] (Jabba-1.2.1a_1.7.10.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Lumberjack{1.1.0.12} [Lumberjack] (Lumberjack-1.7.10-1.1.0.12.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Mantle{1.7.10-0.3.2.jenkins184} [Mantle] (Mantle-1.7.10-0.3.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatAppliedEnergistics{1.7.10R2.8.0RC8} [MFR Compat: Applied Energistics] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatAtum{1.7.10R2.8.0RC8} [MFR Compat: Atum] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatBackTools{1.7.10R2.8.0RC8} [MFR Compat: BackTools] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatBuildCraft{1.7.10R2.8.0RC8} [MFR Compat: BuildCraft] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatChococraft{1.7.10R2.8.0RC8} [MFR Compat: Chococraft] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatExtraBiomes{1.7.10R2.8.0RC8} [MFR Compat: ExtraBiomes] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatForestry{1.7.10R2.8.0RC8} [MFR Compat: Forestry] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatForgeMicroblock{1.7.10R2.8.0RC8} [MFR Compat: ForgeMicroblock] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatIC2{1.7.10R2.8.0RC8} [MFR Compat: IC2] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
Mystcraft{0.11.1.00} [Mystcraft] (mystcraft-1.7.10-0.11.1.00.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatMystcraft{1.7.10R2.8.0RC8} [MFR Compat: Mystcraft] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatProjRed{1.7.10R2.8.0RC8} [MFR Compat ProjectRed] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatRailcraft{1.7.10R2.8.0RC8} [MFR Compat: Railcraft] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatRP2{1.7.10R2.8.0RC8} [MFR Compat: RP2] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatSufficientBiomes{1.7.10R2.8.0RC8} [MFR Compat: Sufficient Biomes] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatThaumcraft{1.7.10R2.8.0RC8} [MFR Compat: Thaumcraft] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatThermalExpansion{1.7.10R2.8.0RC8} [MFR Compat: Thermal Expansion] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
TConstruct{1.7.10-1.8.3.build919} [Tinkers' Construct] (TConstruct-1.7.10-1.8.3b.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatTConstruct{1.7.10R2.8.0RC8} [MFR Compat: Tinkers' Construct] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatTwilightForest{1.7.10R2.8.0RC8} [MFR Compat: TwilightForest] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineFactoryReloaded|CompatVanilla{1.7.10R2.8.0RC8} [MFR Compat: Vanilla] (MineFactoryReloaded-[1.7.10]2.8.0RC8-86.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
MineTweaker3{3.0.9} [MineTweaker 3] (MineTweaker3-1.7.10-3.0.9.jar) Unloaded->Constructed->Pre-initialized->Initialized->Errored
modtweaker2{0.7} [Mod Tweaker 2] (ModTweaker 2-0.7.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Errored
ModularForcefieldSystem{3.0-ALPHA-7} [Modular Forcefield System] (ModularForcefieldSystem-1.7.10-3.0-ALPHA-7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
NetherOres{1.7.10R2.3.0RC4} [Nether Ores] (NetherOres-[1.7.10]2.3.0RC4-4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
fodc{1.6.1} [Ore Dictionary Converter] (OreDictionaryConverter-1.6.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
RandomThings{2.2.4} [Random Things] (RandomThings-2.2.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
RedstoneArsenal{1.7.10R1.1.0RC7} [Redstone Arsenal] (RedstoneArsenal-[1.7.10]1.1.0RC7-65.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
simplyjetpacks{1.4.1} [Simply Jetpacks] (SimplyJetpacks-MC1.7.10-1.4.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
ThaumicTinkerer{unspecified} [Thaumic Tinkerer] (ThaumicTinkerer-2.5-1.7.10-162.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
ThermalDynamics{1.7.10R1.0.0RC7} [Thermal Dynamics] (ThermalDynamics-[1.7.10]1.0.0RC7-98.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized
AE2 Version: stable rv1-stable-1 for Forge 10.13.0.1187
CoFHCore: -[1.7.10]3.0.0RC7-211
MineFactoryReloaded: -[1.7.10]2.8.0RC8-86
ThermalFoundation: -[1.7.10]1.0.0RC7-62
ThermalExpansion: -[1.7.10]4.0.0RC7-141
Mantle Environment: Environment healthy.
TConstruct Environment: Environment healthy.
NetherOres: Lacking version information.
RedstoneArsenal: -[1.7.10]1.1.0RC7-65
ThermalDynamics: -[1.7.10]1.0.0RC7-98
AE2 Integration: IC2:OFF, RotaryCraft:OFF, RC:OFF, BC:ON, MJ6:OFF, MJ5:OFF, RF:ON, RFItem:ON, MFR:ON, DSU:ON, FZ:OFF, FMP:OFF, RB:OFF, CLApi:OFF, Waila:ON, InvTweaks:ON, NEI:ON, CraftGuide:OFF, Mekanism:OFF, ImmibisMicroblocks:OFF, BetterStorage:OFF

Can someone please tell me what mod is causing this crash. I am using the stable version of every mod except nei.

Thanks

Also, next time, please hide crash reports under spoilers, it's easier on people's eyes and doesn't take up much space as it can be easily shown and hidden.

Sorry, ill remember that for next time. Also do you know it was buildcraft.

Thanks