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Hey,

If anyone could help out with this report, that would be great thanks.

---- Minecraft Crash Report -------- Minecraft Crash Report ----// Don't do that.
Time: 2/7/19 10:44 PMDescription: There was a severe problem during mod loading that has caused the game to fail
cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: sheenrox82/RioV/src/api/handler/packet/PacketPipeline at cpw.mods.fml.common.LoadController.transition(LoadController.java:156) at cpw.mods.fml.common.Loader.loadMods(Loader.java:523) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:183) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:473) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:808) at net.minecraft.client.main.Main.main(SourceFile:101) 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:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:131) at net.minecraft.launchwrapper.Launch.main(Launch.java:27)Caused by: java.lang.NoClassDefFoundError: sheenrox82/RioV/src/api/handler/packet/PacketPipeline at sheenrox82.RioV.src.api.base.RioVAPI.<init>(RioVAPI.java:28) at sheenrox82.RioV.src.api.base.RioVAPI.<clinit>(RioVAPI.java:13) at sheenrox82.RioV.src.util.Registry.preInit(Registry.java:60) at sheenrox82.RioV.src.base.TheMistsOfRioV.preInit(TheMistsOfRioV.java:38) 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:497) at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:545) at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74) at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296) at com.google.common.eventbus.EventBus.post(EventBus.java:267) at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:201) at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:181) 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:497) at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74) at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45) at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313) at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296) at com.google.common.eventbus.EventBus.post(EventBus.java:267) at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:112) at cpw.mods.fml.common.Loader.loadMods(Loader.java:522) ... 10 moreCaused by: java.lang.ClassNotFoundException: sheenrox82.RioV.src.api.handler.packet.PacketPipeline at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 40 moreCaused by: java.lang.NoClassDefFoundError: io/netty/handler/codec/MessageToMessageCodec at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:760) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:178) ... 42 moreCaused by: java.lang.ClassNotFoundException: io.netty.handler.codec.MessageToMessageCodec at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:97) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 46 more

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
-- System Details --Details: Minecraft Version: 1.6.4 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 973432960 bytes (928 MB) / 1499463680 bytes (1430 MB) up to 2863661056 bytes (2731 MB) JVM Flags: 4 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx3072m -Xms256m -XX:PermSize=256m AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used Suspicious classes: FML and Forge are installed IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP v8.11 FML v6.4.50.1,345 Minecraft Forge 9.11.1.1345 174 mods loaded, 174 mods active mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized FML{6.4.50.1,345} [Forge Mod Loader] (minecraftforge-9.11.1.1345.jar) Unloaded->Constructed->Pre-initialized Forge{9.11.1.1345} [Minecraft Forge] (minecraftforge-9.11.1.1345.jar) Unloaded->Constructed->Pre-initialized AppliedEnergistics-Core{rv14.finale3} [AppliedEnergistics Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized CodeChickenCore{0.9.0.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized HeldCore-Core{1.2.1} [HeldCore-Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized Micdoodlecore{} [Micdoodle8 Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized MobiusCore{1.2.2} [MobiusCore] (minecraft.jar) Unloaded->Constructed->Pre-initialized NotEnoughItems{1.6.1.9} [Not Enough Items] (NotEnoughItems-1.6.4-1.6.1.9-universal.jar) Unloaded->Constructed->Pre-initialized OpenEye{0.8} [OpenEye] (OpenEye-1.6.4-0.8.jar) Unloaded->Constructed->Pre-initialized PlayerAPI{1.4} [Player API] (minecraft.jar) Unloaded->Constructed->Pre-initialized PowerCrystalsCore{1.1.8} [PowerCrystals Core] (PowerCrystalsCore-1.1.8-9.jar) Unloaded->Constructed->Pre-initialized TConstruct-Preloader{0.0.1} [Tinkers Corestruct] (minecraft.jar) Unloaded->Constructed->Pre-initialized VeinMinerCore{0.12.3} [Vein Miner CoreMod] (minecraft.jar) Unloaded->Constructed->Pre-initialized OpenModsCore{@[email protected]} [OpenModsCore] (minecraft.jar) Unloaded->Constructed->Pre-initialized Erebus{v0.2.0a} [Erebus] ([1.6.4] Erebus 0.2pre3.zip) Unloaded->Constructed->Pre-initialized bspkrsCore{v5.3(1.6.4)} [bspkrsCore] ([1.6.4]bspkrsCorev5.3.zip) Unloaded->Constructed->Pre-initialized TreeCapitator{Forge 1.6.4.r06} [Treecapitator] ([1.6.4]TreeCapitator.Forge.1.6.4.r06.Universal.jar) Unloaded->Constructed->Pre-initialized shinoow.abyssalcraft{1.4.5} [AbyssalCraft] (_1.6.4___Forge__AbyssalCraft_V._1.4.5.zip) Unloaded->Constructed->Pre-initialized mod_MouseTweaks{2.3.4 (for Minecraft 1.6.4)} [Mouse Tweaks] (_1.6.4__Mouse_Tweaks_2.3.4.zip) Unloaded->Constructed->Pre-initialized ccm{1.0.1} [MrCrayfish's Construction Mod] (_Forge_MrCrayfishConstructionModv1.0.5__1.6.4_.zip) Unloaded->Constructed->Pre-initialized AetherCraft{1.3.3.0} [AetherCraft] (AetherCraft-1.3.3.94__fixed_.jar) Unloaded->Constructed->Pre-initialized Agriculture{1.0.0} [Agriculture] (Agriculture-1.6.4-1.2.13.jar) Unloaded->Constructed->Pre-initialized arsmagica2{1.1.1c} [Ars Magica 2] (AM2_1.1.1c.zip) Unloaded->Constructed->Pre-initialized AppliedEnergistics{rv14.finale3} [Applied Energistics] (appeng-rv14-finale3-mc16x.jar) Unloaded->Constructed->Pre-initialized Atum{0.5.9B} [Atum] (Atum1.6.4-0.5.9b.jar) Unloaded->Constructed->Pre-initialized CoFHCore{2.0.0.5} [CoFH Core] (CoFHCore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized NetherOres{1.6.2R2.2.2} [Nether Ores] (NetherOres-2.2.2-55.jar) Unloaded->Constructed->Pre-initialized BuildCraft|Core{4.2.2} [BuildCraft] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized UniversalElectricity{3.1.0} [Universal Electricity] (Universal-Electricity-3.1.0.99-dev.jar) Unloaded->Constructed->Pre-initialized ForgeMultipart{1.0.1.268} [Forge Multipart] (ForgeMultipart-universal-1.6.4-1.0.1.268.jar) Unloaded->Constructed->Pre-initialized ThermalExpansion{3.0.0.7} [Thermal Expansion] (ThermalExpansion-3.0.0.7.jar) Unloaded->Constructed->Pre-initialized autopackager{1.2} [AutoPackager] (autopackager-1.4.2.jar) Unloaded->Constructed->Pre-initialized Backpack{1.28.37} [Backpack] (backpack-1.28.37-1.6.x.jar) Unloaded->Constructed->Pre-initialized iChunUtil{2.4.0} [iChunUtil] (iChunUtil2.4.0.zip) Unloaded->Constructed->Pre-initialized BackTools{2.0.1} [BackTools] (BackTools2.0.1.zip) Unloaded->Constructed->Pre-initialized BuildCraft|Builders{4.2.2} [BC Builders] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized BuildCraft|Energy{4.2.2} [BC Energy] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized BuildCraft|Factory{4.2.2} [BC Factory] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized BuildCraft|Transport{4.2.2} [BC Transport] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized BuildCraft|Silicon{4.2.2} [BC Silicon] (buildcraft-A-1.6.4-4.2.2.jar) Unloaded->Constructed->Pre-initialized BCTools{1.4-a-17} [Buildcraft Tools] (bcTools-v1.4-a-17.jar) Unloaded->Constructed->Pre-initialized bdlib{1.2.3.48} [BD Lib] (bdlib-mc164-1.2.3.48.jar) Unloaded->Constructed->Pre-initialized QuiverMod{1.6.2} [Better Archery] (Better_Archery_1.6.3_for_1.6.4.zip) Unloaded->Constructed->Pre-initialized IC2{2.0.397-experimental} [IndustrialCraft 2] (industrialcraft-2_2.0.397-experimental.jar) Unloaded->Constructed->Pre-initialized betterarmor{1.2.1.0} [Better Armor] (BetterArmor1.3.0.0.jar) Unloaded->Constructed->Pre-initialized BiblioCraft{1.5.5} [BiblioCraft] (BiblioCraft[v1.5.5].zip) Unloaded->Constructed->Pre-initialized Natura{2.1.14} [Natura] (Natura_mc1.6.X_2.1.14.jar) Unloaded->Constructed->Pre-initialized BiomesOPlenty{1.2.1} [Biomes O' Plenty] (Biomes-O-Plenty-Mod-1.6.4.jar) Unloaded->Constructed->Pre-initialized BiblioWoodsBoP{1.3} [BiblioWoods Biomes O'Plenty Edition] (BiblioWoods[BiomesOPlenty][v1.3].zip) Unloaded->Constructed->Pre-initialized MineFactoryReloaded{1.6.4R2.7.9} [MineFactory Reloaded] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatForestryPre{1.6.4R2.7.9} [MFR Compat: Forestry (part 2)] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized Forestry{2.3.1.1} [Forestry for Minecraft] (forestry-A-2.3.1.1.jar) Unloaded->Constructed->Pre-initialized BiblioWoodsForestry{1.3} [BiblioWoods Forestry Edition] (BiblioWoods[Forestry][v1.3].zip) Unloaded->Constructed->Pre-initialized BiblioWoodsNatura{1.1} [BiblioWoods Natura Edition] (BiblioWoods[Natura][v1.1].zip) Unloaded->Constructed->Pre-initialized ComputerCraft{1.63} [ComputerCraft] (ComputerCraft1.63.jar) Unloaded->Constructed->Pre-initialized Mekanism{6.0.2} [Mekanism] (Mekanism-6.0.2.17.jar) Unloaded->Constructed->Pre-initialized OpenComputers|Core{1.0.0} [OpenComputers (Core)] (OpenComputers-MC1.6.4-1.3.6.561-universal.jar) Unloaded->Constructed->Pre-initialized BigReactors{0.3.4A2} [Big Reactors] (BigReactors-0.3.4A2.jar) Unloaded->Constructed->Pre-initialized CarpentersBlocks{3.2.8.6} [Carpenter's Blocks] (Carpenter's Blocks v3.2.8.6 - MC 1.6.4.jar) Unloaded->Constructed->Pre-initialized ChickenChunks{1.3.3.4} [ChickenChunks] (ChickenChunks-1.6.4-1.3.3.4-universal.jar) Unloaded->Constructed->Pre-initialized CoFHLoot{2.0.0.5} [CoFH Loot] (CoFHCore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized CoFHMasquerade{2.0.0.5} [CoFH Masquerade] (CoFHCore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized CoFHSocial{2.0.0.5} [CoFH Social] (CoFHCore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized CoFHWorld{2.0.0.5} [CoFH World] (CoFHCore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized colourfulPortalsMod{1.3.2} [Colourful Portals Mod] (ColourfulPortals_v.1.3.2_for_1.6.4.zip) Unloaded->Constructed->Pre-initialized EnderStorage{1.4.3.6} [EnderStorage] (EnderStorage-1.6.4-1.4.3.6-universal.jar) Unloaded->Constructed->Pre-initialized Thaumcraft{4.1.0g} [Thaumcraft] (Thaumcraft4.1.0g.zip) Unloaded->Constructed->Pre-initialized Railcraft{8.4.0.0} [Railcraft] (Railcraft_1.6.4-8.4.0.0.jar) Unloaded->Constructed->Pre-initialized TC{4.2.1_012} [Traincraft] (traincraft-4.2.1_011.jar) Unloaded->Constructed->Pre-initialized DartCraft{Beta 0.2.12} [DartCraft] (DartCraft Beta 0.2.12.jar) Unloaded->Constructed->Pre-initialized dartpatch{2.3} [DartPatch] (dartpatch-2.3.jar) Unloaded->Constructed->Pre-initialized DeathCounter{2.0.0} [DeathCounter] (DeathCounter2.0.0.zip) Unloaded->Constructed->Pre-initialized EnderIO{1.0.6} [Ender IO] (EnderIO-1.6.4-1.0.6.376.jar) Unloaded->Constructed->Pre-initialized EnderTanks{1.7d} [Ender Tanks] (EnderTanks-1.7d.jar) Unloaded->Constructed->Pre-initialized evilcraft{0.4.1b} [EvilCraft] (EvilCraft-1.6.4-0.4.1b-51.jar) Unloaded->Constructed->Pre-initialized Waila{1.5.2a} [Waila] (Waila_1.5.2a.zip) Unloaded->Constructed->Pre-initialized TConstruct{1.6.X_1.5.3dev} [Tinkers' Construct] (TConstruct_mc1.6.4_1.5.3.jar) Unloaded->Constructed->Pre-initialized ExtraTiC{0.8.4} [ExtraTiC] (ExtraTiC-1.6.4-0.8.4.jar) Unloaded->Constructed->Pre-initialized ThaumicTinkerer{2.3-140} [Thaumic Tinkerer] (ThaumicTinkerer-2.3-140.jar) Unloaded->Constructed->Pre-initialized ForbiddenMagic{0.35a} [Forbidden Magic] (ForbiddenMagic pr0.35a.jar) Unloaded->Constructed->Pre-initialized santafreedom{1.7.7.7} [Freedom] (freedom1777.zip) Unloaded->Constructed->Pre-initialized GalacticraftCore{2.0.14} [Galact
icraft Core] (Galacticraft-1.6.4-2.0.14.1098.jar) Unloaded->Constructed->Pre-initialized GalacticraftMars{2.0.14} [Galacticraft Mars] (Galacticraft-Planets-1.6.4-2.0.14.1098.jar) Unloaded->Constructed->Pre-initialized GalaxyWarfare{v1.0.1} [Galaxy Warfare] (Galaxy_Warfare_-_v1.0.1.zip) Unloaded->Constructed->Pre-initialized gendustry{1.1.3.fix1} [GenDustry] (gendustry-mc164-1.1.3.fix1.jar) Unloaded->Constructed->Pre-initialized GraveStone{2.8.3} [GraveStone] (GraveStone_2.8.3.zip) Unloaded->Constructed->Pre-initialized GunCus{TDK1.6.4-v3.3x} [Gun Customization] (GunCustomization-1.6.4-3.33.jar) Unloaded->Constructed->Pre-initialized GunCusExplosives{1.7.10 BETA v1.1} [Gun Customization Explosives] (GunCustomization-1.6.4-3.33.jar) Unloaded->Constructed->Pre-initialized GunCusOfficialGuns{1.7.10 BETA v4} [Gun Customization Official Guns] (GunCustomization-1.6.4-3.33.jar) Unloaded->Constructed->Pre-initialized Hats{2.1.8} [Hats] (Hats2.1.8.zip) Unloaded->Constructed->Pre-initialized HatStand{2.1.0} [HatStand] (HatStand2.1.0.zip) Unloaded->Constructed->Pre-initialized HeldCore{01.03.06.00} [HeldCore] (HeldCore-1.6.4-01.03.06.00.jar) Unloaded->Constructed->Pre-initialized JABBA{1.1.4} [JABBA] (JABBA_1.1.4.zip) Unloaded->Constructed->Pre-initialized journeymap{4.0.3} [JourneyMap] (JourneyMap4.0.3_Unlimited_MC1.6.4.jar) Unloaded->Constructed->Pre-initialized SGCraft{0.1.0build82} [Delta-SGCraft-Reloaded] (LanteaCraft-0.1.0-forge9.11.1.933-snapshot-88.jar) Unloaded->Constructed->Pre-initialized RedGear|Core{2.0.5} [Red Gear Core] (RedGearCore-2.0.5.jar) Unloaded->Constructed->Pre-initialized RedGear|LiquidFuels{2.3.2} [Liquid Fuels] (Liquid_Fuels-2.3.2.jar) Unloaded->Constructed->Pre-initialized LotsOfFood{1.6.4} [Lots of Food] (Lots of Food 1.6.4.zip) Unloaded->Constructed->Pre-initialized magicalcrops{1.6.4_3.2.0_BETA_23} [Magical Crops] (magicalcrops-1.6.4_3.2.0_BETA_23.jar) Unloaded->Constructed->Pre-initialized standardcrops{1.1.0} [Magical Crops - Crops & Food] (magicalcrops-1.6.4_3.2.0_BETA_23.jar) Unloaded->Constructed->Pre-initialized MekanismGenerators{6.0.2} [MekanismGenerators] (MekanismGenerators-6.0.2.17.jar) Unloaded->Constructed->Pre-initialized MekanismTools{6.0.2} [MekanismTools] (MekanismTools-6.0.2.17.jar) Unloaded->Constructed->Pre-initialized MFR Compat Forestry Trees{1.0} [MFR Compat Forestry Trees] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MFR Compat Extra Trees{1.0} [MFR Compat Extra Trees] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatAppliedEnergistics{1.6.4R2.7.9} [MFR Compat: Applied Energistics] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatAtum{1.6.4R2.7.9} [MFR Compat: Atum] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatBackTools{1.6.4R2.7.9} [MFR Compat: BackTools] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatBuildCraft{1.6.4R2.7.9} [MFR Compat: BuildCraft] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatChococraft{1.6.4R2.7.9} [MFR Compat: Chococraft] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatExtraBiomes{1.6.4R2.7.9} [MFR Compat: ExtraBiomes] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatForestry{1.6.4R2.7.9} [MFR Compat: Forestry] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatForgeMicroblock{1.6.4R2.7.9} [MFR Compat: ForgeMicroblock] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatIC2{1.6.4R2.7.9} [MFR Compat: IC2] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized Mystcraft{0.10.13.01} [Mystcraft] (mystcraft-uni-1.6.4-0.10.13.01.zip) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatMystcraft{1.6.4R2.7.9} [MFR Compat: Mystcraft] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatPams{1.6.4R2.7.9} [MFR Compat: Pam's Mods] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatProjRed{1.6.4R2.7.9} [MFR Compat ProjectRed] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatRailcraft{1.6.4R2.7.9} [MFR Compat: Railcraft] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatRP2{1.6.4R2.7.9} [MFR Compat: RP2] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatSufficientBiomes{1.6.4R2.7.9} [MFR Compat: Sufficient Biomes] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatThaumcraft{1.6.4R2.7.9} [MFR Compat: Thaumcraft] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatThermalExpansion{1.6.4R2.7.9} [MFR Compat: Thermal Expansion] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatTwilightForest{1.6.4R2.7.9} [MFR Compat: TwilightForest] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatVanilla{1.6.4R2.7.9} [MFR Compat: Vanilla] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineFactoryReloaded|CompatXyCraft{1.6.4R2.7.9} [MFR Compat: XyCraft] (MineFactoryReloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized MineTweaker3{1.6.4-3.0.0} [MineTweaker 3] (MineTweaker.jar) Unloaded->Constructed->Pre-initialized mod_Mithril{1.6.4} [Mithril] (mithril_1-6-4-1.zip) Unloaded->Constructed->Pre-initialized Mo' Shiz{v1.42} [Mo' Shiz] (Mo' Shiz v1.42.zip) Unloaded->Constructed->Pre-initialized ModularTurrets{1.0.1} [Modular Turrets] (ModularTurrets-1.6.4-v1.0.1.zip) Unloaded->Constructed->Pre-initialized morefuelsmod-1.6.4{1.3.2} [§4§lMore Fuels Mod] (morefuelsmod-1.6.4-v1.3.2.jar) Unloaded->Constructed->Pre-initialized examplemod{1.0} [examplemod] (morefuelsmod-1.6.4-v1.3.2.jar) Unloaded->Constructed->Pre-initialized Morph{0.7.2} [Morph] (Morph-Beta-0.7.2.zip) Unloaded->Constructed->Pre-initialized Morpheus{1.2} [Morpheus] (Morpheus-1.6.4-1.2.32.jar) Unloaded->Constructed->Pre-initialized NEIAddons{1.10.5.70} [NEI Addons] (neiaddons-mc164-1.10.5.70.jar) Unloaded->Constructed->Pre-initialized NEIAddons|AE{1.10.5.70} [NEI Addons: Applied Energistics] (neiaddons-mc164-1.10.5.70.jar) Unloaded->Constructed->Pre-initialized NEIAddons|MiscPeripherals{1.10.5.70} [NEI Addons: Misc Peripherals] (neiaddons-mc164-1.10.5.70.jar) Unloaded->Constructed->Pre-initialized NEIAddons|ExtraBees{1.10.5.70} [NEI Addons: Extra Bees] (neiaddons-mc164-1.10.5.70.jar) Unloaded->Constructed->Pre-initialized NEIAddons|Forestry{1.10.5.70} [NEI Addons: Forestry] (neiaddons-mc164-1.10.5.70.jar) Unloaded->Constructed->Pre-initialized NEIAddons|CraftingTables{1.10.5.70} [NEI Addons: Crafting Tables] (neiaddons-mc164-1.10.5.70.jar) Unloaded->Constructed->Pre-initialized NEIAddons|ExNihilo{1.10.5.70} [NEI Addons: Ex Nihilo] (neiaddons-mc164-1.10.5.70.jar) Unloaded->Constructed->Pre-initialized OpenMods{0.5.1} [OpenMods] (OpenModsLib-0.5.1(1).jar) Unloaded->Constructed->Pre-initialized OpenBlocks{1.2.9} [OpenBlocks] (OpenBlocks-1.2.9.jar) Unloaded->Constructed->Pre-initialized OpenComputers{1.3.6.561} [OpenComputers] (OpenComputers-MC1.6.4-1.3.6.561-universal.jar) Unloaded->Constructed->Pre-initialized Opis{1.2.2} [Opis] (Opis_1.2.2.zip) Unloaded->Constructed->Pre-initialized MapWriter{2.0.1} [MapWriter] (Opis_1.2.2.zip) Unloaded->Constructed->Pre-initialized ParachuteMod{1.6.4} [Parachute Mod] (parachute-2.0.2-1.6.4.jar) Unloaded->Constructed->Pre-initialized PortalGun{2.0.1} [PortalGun] (PortalGun2.0.1.zip) Unloaded->Constructed->Pre-initialized RandomThings{1.9} [Random Things] (Random_Things_v._1.9__MC_1.6.4_.jar) Unloaded->Constructed->Pre-initialized Redstone Arsenal{1.0.0.0} [Redstone Arsenal] (RedstoneArsenal-1.0.0.0.jar) Unloaded->Constructed->Pre-initialized remoteIO{@[email protected]@[email protected]@[email protected]${env.BUILD_NUMBER}} [Remote IO] (RemoteIO-1.8.1.jar) Unloaded->Constructed->Pre-initialized ReptileMod{1.6.4} [Reptile Mod] (reptiles-2.0.2-1.6.4.jar) Unloaded->Constructed->Pre-initialized ResonantEngine{@[email protected]@[email protected]@[email protected]} [ResonantEngine] (Resonant-Engine-1.2.0.349-universal.jar) Unloaded->Constructed->Pre-initialized Roguelike{1.3.3} [Roguelike Dungeons] (roguelike-v1.3.3-forge-1.6.4.zip) Unloaded->Constructed->Pre-initialized SmoothBedrock{1.0.10.75} [Smooth Bedrock] (SmoothBedrock-1.6.4-1.0.10.75.jar) Unloaded->Constructed->Pre-initialized Sync{2.2.3} [Sync] (Sync2.2.3.zip) Unloaded->Constructed->Pre-initialized ThaumcraftExtras{1.1.2} [Thaumcraft Extras] (ThaumcraftExtras-1.6.4-1.1.2[1].jar) Unloaded->Constructed->Pre-initialized thaumcraftneiplugin{1.6.4-1.1b} [Thaumcraft NEI Plugin] (thaumcraftneiplugin-1.6.4-1.1b.jar) Unloaded->Constructed->Pre-initialized RioV{v2.2.3} [The Mists of RioV] (The Mists of RioV - v2.2.3.jar) Unloaded->Constructed->Errored TSteelworks{1.6.4-0.0.4.2-fix2} [Tinkers' Steelworks] (TSteelworks-mc1.6.4_0.0.4.2-fix2.jar) Unloaded->Constructed->Pre-initialized TiCTooltips{1.1.11} [TiC Tooltips] (TiCTooltips-mc1.6.4-1.1.11.jar) Unloaded->Constructed->Pre-initialized Transloc
ator{1.1.0.15} [Translocator] (Translocator-1.6.4-1.1.0.15-universal.jar) Unloaded->Constructed->Pre-initialized TreeCapacitor{1.2-build4} [Tree Capacitor] (treecapacitor-1.2-build4.jar) Unloaded->Constructed->Pre-initialized VeinMiner{0.12.3} [Vein Miner] (VeinMiner.0.12.3_MC1.6.jar) Unloaded->Constructed->Pre-initialized WailaHarvestability{1.1.0} [Waila Harvestability] (WailaHarvestability-mc1.6.4-1.1.0.jar) Unloaded->Constructed->Pre-initialized WarpDrive{1.2.0} [WarpDrive] (WarpDrive-1.6.4-1.2.0.zip) Unloaded->Constructed->Pre-initialized nolpfij_wildycraft{3.3.1} [Wildycraft] (Wildycraft_v3.3.1.zip) Unloaded->Constructed->Pre-initialized witchery{0.20.5} [Witchery] (witchery-1.6.4-0.20.5.zip) Unloaded->Constructed->Pre-initialized WR-CBE|Core{1.4.0.7} [WR-CBE Core] (WR-CBE-1.6.4-1.4.0.7-universal.jar) Unloaded->Constructed->Pre-initialized WR-CBE|Addons{1.4.0.7} [WR-CBE Addons] (WR-CBE-1.6.4-1.4.0.7-universal.jar) Unloaded->Constructed->Pre-initialized WR-CBE|Logic{1.4.0.7} [WR-CBE Logic] (WR-CBE-1.6.4-1.4.0.7-universal.jar) Unloaded->Constructed->Pre-initialized McMultipart{1.0.1.268} [Minecraft Multipart Plugin] (ForgeMultipart-universal-1.6.4-1.0.1.268.jar) Unloaded->Constructed->Pre-initialized NEI-Mystcraft-Plugin{01.05.01.00} [NEI Mystcraft Plugin] (MystNEI-Plugin-1.6.4-01.05.01.00.jar) Unloaded->Constructed->Pre-initialized ForgeMicroblock{1.0.1.268} [Forge Microblocks] (ForgeMultipart-universal-1.6.4-1.0.1.268.jar) Unloaded->Constructed->Pre-initialized TConstruct Environment: Sane and ready for action. Bugs may be reported.

Something is wrong with RioV, make sure you have the most updated version for the version of Minecraft you are running, which is 1.6.4

@ dweller

Looking at the log OP already has the updated/last version for 1.6.4

Pre-initialized RioV{v2.2.3} [The Mists of RioV] (The Mists of RioV - v2.2.3.jar)

- use a vanilla minecraft installation to make sure it runs OK,

- add the Riov mod first & recheck it runs

- then add another mod [one at a time preferably] & re-running until crash.

When it crashes then you'll know which mod is conflicting with Riov

Sure, the NoClassDefFoundError could be several things, the easiest to check is to be sure the most recent version is loaded, after that, be sure the mod has all it's dependencies loaded, and then look for other mods interfering with it loading.

So, the most recent version is being used, and according to Curse Forge, RioV has no dependencies, so the last option is to check the other mods.

Then there's this post in the mod's comments:

https://www.curseforge.com/minecraft/mc-mods/the-mists-of-riov#c14

looks amazing. Wish it worked for 1.6.4 but thats just me.