BossX Posted August 26, 2014 Posted August 26, 2014 (edited) I am trying to make a modpack for my brother and I to play, but I'm running into this weird error. I doesn't appear to have anything to do with any mods, but it just crashes. I know it has something to do with Half Slab Blocks, but that's as far as I could get. ---- Minecraft Crash Report ---- // Why is it breaking Time: 8/26/14 10:21 PM Description: Initializing game java.lang.NoClassDefFoundError: net/minecraft/block/BlockHalfSlab at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:420) at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) 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(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) 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.loadMods(Loader.java:492) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:204) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480) 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(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) Caused by: java.lang.ClassNotFoundException: net.minecraft.block.BlockHalfSlab at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:188) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 34 more Caused by: java.lang.NullPointerException A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Stacktrace: at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:420) at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) 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(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) 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.loadMods(Loader.java:492) at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:204) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480) -- Initialization -- Details: Stacktrace: 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(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) -- System Details -- Details: Minecraft Version: 1.7.10 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.7.0_21, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 251747216 bytes (240 MB) / 874446848 bytes (833 MB) up to 1908932608 bytes (1820 MB) JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2048m -XX:MaxPermSize=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 v7.10.25.1208 Minecraft Forge 10.13.0.1208 88 mods loaded, 88 mods active mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed FML{7.10.25.1208} [Forge Mod Loader] (modpack.jar) Unloaded->Constructed Forge{10.13.0.1208} [Minecraft Forge] (modpack.jar) Unloaded->Constructed AppliedEnergistics2-Core{rv0-stable-10} [AppliedEnergistics2 Core] (minecraft.jar) Unloaded->Constructed CodeChickenCore{1.0.2.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed <CoFH ASM>{000} [CoFH ASM Data Initialization] (minecraft.jar) Unloaded->Constructed MCVanillaTweaks{1.0} [Mariculture - Vanilla Tweaks] (minecraft.jar) Unloaded->Constructed Micdoodlecore{} [Micdoodle8 Core] (minecraft.jar) Unloaded->Constructed NotEnoughItems{1.0.2.15} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.2.15-universal.jar) Unloaded->Constructed TConstruct-Preloader{0.1.1} [Tinkers Corestruct] (minecraft.jar) Unloaded->Constructed coloredlightscore{1.1.2} [Colored Lights Core] (minecraft.jar) Unloaded->Constructed bspkrsCore{6.12} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.12.jar) Unloaded->Constructed ArmorStatusHUD{1.27} [ArmorStatusHUD] ([1.7.10]ArmorStatusHUD-client-1.27.jar) Unloaded->Constructed DamageIndicatorsMod{3.2.0} [Damage Indicators] ([1.7.10]DamageIndicatorsMod-3.2.0.jar) Unloaded->Constructed StatusEffectHUD{1.26} [StatusEffectHUD] ([1.7.10]StatusEffectHUD-client-1.26.jar) Unloaded->Constructed Treecapitator{1.7.2} [Treecapitator] ([1.7.2]Treecapitator-universal-2.0.3.jar) Unloaded->Constructed IC2{2.2.621-experimental} [IndustrialCraft 2] (industrialcraft-2-2.2.621-experimental.jar) Unloaded->Constructed ImmibisCore{59.0.1} [Immibis Core] (immibis-core-59.0.1.jar) Unloaded->Constructed AdvancedRepulsionSystems{59.0.1} [Advanced Repulsion Systems] (adv-repulsion-systems-59.0.1.jar) Unloaded->Constructed AdvancedMachines{59.0.1} [Advanced Machines] (advanced-machines-59.0.1.jar) Unloaded->Constructed AnimationAPI{1.2.2} [AnimationAPI] (AnimationAPI-1.7.2-1.2.2.jar) Unloaded->Constructed BuildCraft|Core{6.0.17} [BuildCraft] (buildcraft-6.0.17.jar) Unloaded->Constructed CoFHCore{1.7.10R3.0.0B5} [CoFH Core] (CoFHCore-[1.7.10]3.0.0B5-30.jar) Unloaded->Constructed ThermalFoundation{1.7.10R1.0.0B3} [Thermal Foundation] (ThermalFoundation-[1.7.10]1.0.0B3-8.jar) Unloaded->Constructed ForgeMultipart{1.1.0.297} [Forge Multipart] (ForgeMultipart-1.7.10-1.1.0.297-universal.jar) Unloaded->Constructed ExtraUtilities{1.1.0i} [Extra Utilities] (extrautilities-1.1.0i.jar) Unloaded->Constructed MetallurgyCore{4.0.3} [Metallurgy Core] (MetallurgyCore-1.7.10-4.0.3.11.jar) Unloaded->Constructed BuildCraft|Builders{6.0.17} [BC Builders] (buildcraft-6.0.17.jar) Unloaded->Constructed BuildCraft|Energy{6.0.17} [BC Energy] (buildcraft-6.0.17.jar) Unloaded->Constructed BuildCraft|Factory{6.0.17} [BC Factory] (buildcraft-6.0.17.jar) Unloaded->Constructed Railcraft{9.2.2.0} [Railcraft] (Railcraft_1.7.10-9.2.2.0.jar) Unloaded->Constructed GalacticraftCore{3.0.1} [Galacticraft Core] (GalacticraftCore-BETA-1.7-3.0.1.170.jar) Unloaded->Constructed Mekanism{7.1.0} [Mekanism] (Mekanism-1.7.10-7.1.0.91.jar) Unloaded->Constructed ThermalExpansion{1.7.10R4.0.0B5} [Thermal Expansion] (ThermalExpansion-[1.7.10]4.0.0B5-13.jar) Unloaded->Constructed appliedenergistics2{rv0-stable-10} [Applied Energistics 2] (appliedenergistics2-rv0-stable-10.jar) Unloaded->Constructed BiblioCraft{1.7.5} [BiblioCraft] (BiblioCraft[v1.7.5][MC1.7.10].jar) Unloaded->Constructed Mantle{1.7.10-165.4bc3343} [Mantle] (Mantle_mc1.7.10_0.3.0 (1).jar) Unloaded->Constructed Natura{2.2.0} [Natura] (natura-1.7.10-2.2.0-b1.jar) Unloaded->Constructed BiomesOPlenty{2.1.0} [Biomes O' Plenty] (BiomesOPlenty-1.7.10-2.1.0.977-universal.jar) Unloaded->Constructed BiblioWoodsBoP{1.7} [BiblioWoods Biomes O'Plenty Edition] (BiblioWoods[BiomesOPlenty][v1.7].jar) Unloaded->Constructed BiblioWoodsNatura{1.3} [BiblioWoods Natura Edition] (BiblioWoods[Natura][v1.3].jar) Unloaded->Constructed blocklings{1.2.0} [Blocklings] (Blocklings-v1.2.0-MC1.7.10.jar) Unloaded->Constructed BuildCraft|Transport{6.0.17} [BC Transport] (buildcraft-6.0.17.jar) Unloaded->Constructed BuildCraft|Silicon{6.0.17} [BC Silicon] (buildcraft-6.0.17.jar) Unloaded->Constructed easycoloredlights{1.7.2.} [Easy Colored Lights] (ColoredLightsCore-1.7.10.01.jar) Unloaded->Constructed DimensionalAnchors{59.0.2} [Dimensional Anchors] (dimensional-anchor-59.0.2.jar) Unloaded->Constructed Enchiridion{1.1} [Enchiridion] (Enchiridion-1.7.X-1.2b.jar) Unloaded->Constructed Waila{1.5.3a} [Waila] (Waila-1.5.3a_1.7.10.jar) Unloaded->Constructed TConstruct{1.7.10-1.6.0.build591} [Tinkers' Construct] (TConstruct_mc1.7.10_1.6.0d39 (1).jar) Unloaded->Constructed Metallurgy{4.0.4} [Metallurgy 4] (Metallurgy-1.7.10-4.0.4.43.jar) Unloaded->Constructed ExtraTiC{0.8.4} [ExtraTiC] (ExtraTiC-1.7.10-1.0.3.jar) Unloaded->Constructed GalacticraftMars{3.0.1} [Galacticraft Planets] (Galacticraft-Planets-BETA-1.7-3.0.1.170.jar) Unloaded->Constructed IronChest{6.0.51.734} [Iron Chest] (ironchest-1.7.10-6.0.51.734-universal.jar) Unloaded->Constructed journeymap{4.0.4} [JourneyMap] (JourneyMap4.0.4_Unlimited_MC1.7.10.jar) Unloaded->Constructed LiquidXP{59.0.0} [Liquid XP] (liquid-xp-59.0.0.jar) Unloaded->Constructed magicalcrops{1.7.2 - 0.1 ALPHA} [Magical Crops] (magicalcrops-1.7.10_0.1.jar) Unloaded->Constructed Mariculture{1.2.3b} [Mariculture] (Mariculture-1.7.10-1.2.3b.jar) Unloaded->Constructed MekanismGenerators{7.1.0} [MekanismGenerators] (MekanismGenerators-1.7.10-7.1.0.91.jar) Unloaded->Constructed MekanismTools{7.1.0} [MekanismTools] (MekanismTools-1.7.10-7.1.0.91.jar) Unloaded->Constructed meteors{2.13.1} [Falling Meteors] (meteors-1.7.10-2.13.1.jar) Unloaded->Constructed AencEx{0.0.1} [AencEx] (MoreEnchantments-1.7.X-1.1.jar) Unloaded->Constructed me{1.1} [More Enchantments] (MoreEnchantments-1.7.X-1.1.jar) Unloaded->Constructed MutantCreatures{1.4.5} [Mutant Creatures] (MutantCreatures-1.7.2-1.4.5.jar) Unloaded->Constructed NEIAddons{1.12.2.9} [NEI Addons] (neiaddons-mc1710-1.12.2.9.jar) Unloaded->Constructed NEIAddons|Botany{1.12.2.9} [NEI Addons: Botany] (neiaddons-mc1710-1.12.2.9.jar) Unloaded->Constructed NEIAddons|Forestry{1.12.2.9} [NEI Addons: Forestry] (neiaddons-mc1710-1.12.2.9.jar) Unloaded->Constructed NEIAddons|CraftingTables{1.12.2.9} [NEI Addons: Crafting Tables] (neiaddons-mc1710-1.12.2.9.jar) Unloaded->Constructed NEIAddons|ExNihilo{1.12.2.9} [NEI Addons: Ex Nihilo] (neiaddons-mc1710-1.12.2.9.jar) Unloaded->Constructed NetherOres{1.7.10R2.3.0RC3} [Nether Ores] (NetherOres-[1.7.10]2.3.0RC3-84.jar) Unloaded->Constructed ProjRed|Core{4.4.5.44} [ProjectRed] (ProjectRed-Base-1.7.10-4.4.5.44.jar) Unloaded->Constructed ProjRed|Transmission{4.4.5.44} [ProjectRed-Transmission] (ProjectRed-Integration-1.7.10-4.4.5.44.jar) Unloaded->Constructed ProjRed|Transportation{4.4.5.44} [ProjectRed-Transportation] (ProjectRed-Mechanical-1.7.10-4.4.5.44.jar) Unloaded->Constructed ProjRed|Exploration{4.4.5.44} [ProjectRed-Exploration] (ProjectRed-World-1.7.10-4.4.5.44.jar) Unloaded->Constructed ProjRed|Compatibility{4.4.5.44} [ProjectRed-Compatibility] (ProjectRed-Compat-1.7.10-4.4.5.44.jar) Unloaded->Constructed ProjRed|Integration{4.4.5.44} [ProjectRed-Integration] (ProjectRed-Integration-1.7.10-4.4.5.44.jar) Unloaded->Constructed ProjRed|Illumination{4.4.5.44} [ProjectRed-Illumination] (ProjectRed-Lighting-1.7.10-4.4.5.44.jar) Unloaded->Constructed ProjRed|Expansion{4.4.5.44} [ProjectRed-Expansion] (ProjectRed-Mechanical-1.7.10-4.4.5.44.jar) Unloaded->Constructed RedstoneArsenal{1.7.10R1.1.0B4} [Redstone Arsenal] (RedstoneArsenal-[1.7.10]1.1.0B4-10.jar) Unloaded->Constructed ReiMinimap{1.7.10} [Rei's Minimap] (ReiMinimap-1.7.10-3.6.jar) Unloaded->Constructed StevesCarts{2.0.0.b16} [Steve's Carts 2] (StevesCarts2.0.0.b16.jar) Unloaded->Constructed telepads{1.6.4 v5} [Teleportation Pads] (Telepads-1.7.2_1.7.jar) Unloaded->Constructed TiCTooltips{1.1.9} [TiC Tooltips] (TiC-Tooltips-mc1.7.10-1.1.9.jar) Unloaded->Constructed TMechworks{1.7.10-67.34d1d9b} [Tinkers' Mechworks] (TMechworks_mc1.7.10_0.2.8.jar) Unloaded->Constructed TorchLevers{1.3.3} [Torch Levers] (TorchLeversV1.3.3.jar) Unloaded McMultipart{1.1.0.297} [Minecraft Multipart Plugin] (ForgeMultipart-1.7.10-1.1.0.297-universal.jar) Unloaded aobd{2.2.3} [Another One Bites The Dust] (AOBD-2.2.3.jar) Unloaded IguanaTweaksTConstruct{1.7.10-2.0.1.DEV.84b0c6f} [Iguana Tweaks for Tinkers Construct] (IguanaTinkerTweaks-1.7.10-2.0.1B2.jar) Unloaded ForgeMicroblock{1.1.0.297} [Forge Microblocks] (ForgeMultipart-1.7.10-1.1.0.297-universal.jar) Unloaded AE2 Version: stable rv0-stable-10 for Forge 10.13.0.1152 Mantle Environment: Environment healthy. TConstruct Environment: Environment healthy. Launched Version: 1.7.10-Forge10.13.0.1208 LWJGL: 2.9.1 OpenGL: ATI Radeon HD 4350 GL version 3.3.10765 Compatibility Profile Context, ATI Technologies Inc. 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) Edited August 27, 2014 by BossX
Discord Moderator plowmanplow Posted August 27, 2014 Discord Moderator Posted August 27, 2014 Update your Java version. That error commonly occurs when a mod version does not match the version of Forge/MC for the pack or when mods have conflicting APIs. Without more detailed logs and without the API URL it is impossible to say for sure where the issue is originating. You should be building your pack methodically so that when you add a mod and things start crashing you know right where to look.
BossX Posted August 28, 2014 Author Posted August 28, 2014 Ok, thanks. I'll go through and add a few mods at a time. I recently updated my java version, so I don't think that'll be the issue. I am also using some 1.7.10 modpack as a base, and thenonce I get everything working, I'm gonna pack it up and host it somewhere.
BossX Posted August 28, 2014 Author Posted August 28, 2014 I went through and put in about 5-10 mods at a time, and found the mod causing the issue. Thanks for the help!
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