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So today I downloaded forge launcher and some mods, I think I got all the compatibility issues sorted out with the 21 mods then I get this error. If anyone knows anything about java and errors I would really appreciate it This is the error with the various mods. This happen whenever I create a new world, so whenever I try to play.

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

-- Head --
Stacktrace:
at net.minecraftforge.fluids.FluidRegistry.getDefaultFluidName(FluidRegistry.java:297)
at net.minecraftforge.fluids.FluidRegistry.writeDefaultFluidList(FluidRegistry.java:327)
at net.minecraftforge.common.ForgeModContainer.getDataForWriting(ForgeModContainer.java:315)
at cpw.mods.fml.common.FMLCommonHandler.handleWorldDataSave(FMLCommonHandler.java:375)
at net.minecraft.world.storage.SaveHandler.func_75761_a(SaveHandler.java:209)
at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2081)
at net.minecraft.client.gui.GuiCreateWorld.func_146284_a(GuiCreateWorld.java:230)
at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:225)
at net.minecraft.client.gui.GuiCreateWorld.func_73864_a(GuiCreateWorld.java:377)
at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:296)
at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268)

-- Affected screen --
Details:
Screen name: net.minecraft.client.gui.GuiMainMenu
Stacktrace:
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1640)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
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)

-- 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: 225605512 bytes (215 MB) / 377516032 bytes (360 MB) up to 7502823424 bytes (7155 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx7G -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 10.13.4.1492 20 mods loaded, 20 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UCHIJA mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
UCHIJA FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1492-1.7.10.jar)
UCHIJA Forge{10.13.4.1492} [Minecraft Forge] (forge-1.7.10-10.13.4.1492-1.7.10.jar)
UCHIJA appliedenergistics2-core{rv2-stable-10} [AppliedEnergistics2 Core] (minecraft.jar)
UCHIJA <CoFH ASM>{000} [CoFH ASM] (minecraft.jar)
UCHIJA debug{1.0} [debug] (Dense-Ores-Mod-1.7.10.jar)
UCHIJA appliedenergistics2{rv2-stable-10} [Applied Energistics 2] (appliedenergistics2-rv2-stable-10 (1).jar)
UCHIJA CoFHCore{1.7.10R3.0.3} [CoFH Core] (CoFHCore-[1.7.10]3.0.3-303.jar)
UCHIJA ThermalFoundation{1.7.10R1.2.0} [Thermal Foundation] (ThermalFoundation-[1.7.10]1.2.0-102.jar)
UCHIJA ThermalExpansion{1.7.10R4.0.3B1} [Thermal Expansion] (ThermalExpansion-[1.7.10]4.0.3B1-218.jar)
UCHIJA BigReactors{0.4.2A2} [Big Reactors] (BigReactors-0.4.2A2.jar)
UCHIJA Mantle{1.7.10-0.3.2.jenkins184} [Mantle] (Mantle-1.7.10-0.3.2.jar)
UCHIJA TConstruct{1.7.10-1.8.5.build957} [Tinkers' Construct] (TConstruct-1.7.10-1.8.5.jar)
UCHIJA ExtraTiC{0.8.4} [ExtraTiC] (ExtraTiC-1.7.10-1.0.3.jar)
UCHIJA minechem{5.0.5.394} [Minechem] (Minechem-1.7.10-5.0.5.394.jar)
UCHIJA MoreFurnaces{1.3.9} [More Furnaces] (More-Furnaces-Mod-1.7.10.jar)
UCHIJA OreSpawn{1.7.10.20.3} [OreSpawn] (orespawn-1.7.10-20.3.zip)
UCHIJA YogpstopLib{2.0-RC1} [Yogpstop Library] (QuarryPlus-1.7.10-2.0-RC1.jar)
UCHIJA QuarryPlus{2.0-RC1} [QuarryPlus] (QuarryPlus-1.7.10-2.0-RC1.jar)
UCHIJA denseores{1.0} [Dense Ores] (Dense-Ores-Mod-1.7.10.jar)
GL info: ' Vendor: 'Intel' Version: '4.3.0 - Build 10.18.10.3907' Renderer: 'Intel(R) HD Graphics 4400'
AE2 Version: stable rv2-stable-10 for Forge 10.13.2.1291
CoFHCore: -[1.7.10]3.0.3-303
ThermalFoundation: -[1.7.10]1.2.0-102
ThermalExpansion: -[1.7.10]4.0.3B1-218
Mantle Environment: Environment healthy.
TConstruct Environment: Environment healthy.
AE2 Integration: IC2:OFF, RotaryCraft:OFF, RC:OFF, BC:OFF, RF:ON, RFItem:ON, MFR:OFF, DSU:ON, FZ:OFF, FMP:OFF, RB:OFF, CLApi:OFF, Waila:OFF, InvTweaks:OFF, NEI:OFF, CraftGuide:OFF, Mekanism:OFF, ImmibisMicroblocks:OFF, BetterStorage:OFF
Launched Version: 1.7.10-Forge10.13.4.1492-1.7.10
LWJGL: 2.9.1
OpenGL: Intel(R) HD Graphics 4400 GL version 4.3.0 - Build 10.18.10.3907, Intel
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)

happens*