Crashes whenever you walk on a modded block that adds custom sounds for steps

[DerLeole]

As another user already explained on your forum thread: The crash comes from blocks that use a custom sound for stepping on them beyond the usual dirt/stone/wood/sand sounds. For example, the slime blocks in Tinker's Construct use the slime hopping sound for steps. Trying to walk over those with this mod will cause a crash. It isn't just because the block is a modded block, it's because they have their own sound for stepping on them.

Here you have a crashreport showing that crash in action (dont mind all the other mods in there its in a modpack but the crash also appears when using only your mod):

---- Minecraft Crash Report ---- // Who set us up the TNT?

Time: 08.02.16 23:42 Description: Unexpected error

java.lang.NullPointerException: Unexpected error at eu.ha3.mc.presencefootsteps.mcpackage.implem.AcousticsManager.playStep(AcousticsManager.java:56) at eu.ha3.mc.presencefootsteps.game.system.PFSolver.playAssociation(PFSolver.java:64) at eu.ha3.mc.presencefootsteps.game.system.PFReaderH.simulateFootsteps(PFReaderH.java:115) at eu.ha3.mc.presencefootsteps.game.system.PFReaderH.generateFootsteps(PFReaderH.java:66) at eu.ha3.mc.presencefootsteps.game.system.PFIsolator.onFrame(PFIsolator.java:51) at eu.ha3.mc.presencefootsteps.game.system.PFHaddon.onFrame(PFHaddon.java:359) at eu.ha3.mc.haddon.litemod.LiteBase.onTick(LiteBase.java:99) at com.mumfrey.liteloader.core.event.HandlerList$Tickable8.onTick(HandlerList$Tickable8.java:100) at com.mumfrey.liteloader.client.ClientEvents.onTick(ClientEvents.java:416) at com.mumfrey.liteloader.client.CallbackProxyClient.onTick(CallbackProxyClient.java:63) at com.mumfrey.liteloader.core.event.EventProxy.$event00005(EventProxy.java:216) at net.minecraft.client.Minecraft.func_71411_J(Unknown Source) at net.minecraft.client.Minecraft.func_99999_d(Unknown Source) 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:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

-- Head -- Stacktrace: at eu.ha3.mc.presencefootsteps.mcpackage.implem.AcousticsManager.playStep(AcousticsManager.java:56) at eu.ha3.mc.presencefootsteps.game.system.PFSolver.playAssociation(PFSolver.java:64) at eu.ha3.mc.presencefootsteps.game.system.PFReaderH.simulateFootsteps(PFReaderH.java:115) at eu.ha3.mc.presencefootsteps.game.system.PFReaderH.generateFootsteps(PFReaderH.java:66) at eu.ha3.mc.presencefootsteps.game.system.PFIsolator.onFrame(PFIsolator.java:51) at eu.ha3.mc.presencefootsteps.game.system.PFHaddon.onFrame(PFHaddon.java:359) at eu.ha3.mc.haddon.litemod.LiteBase.onTick(LiteBase.java:99) at com.mumfrey.liteloader.core.event.HandlerList$Tickable8.onTick(HandlerList$Tickable8.java:100) at com.mumfrey.liteloader.client.ClientEvents.onTick(ClientEvents.java:416) at com.mumfrey.liteloader.client.CallbackProxyClient.onTick(CallbackProxyClient.java:63)

-- Affected level -- Details: Level name: MpServer All players: 1 total; [EntityClientPlayerMP['Leolele99'/15112, l='MpServer', x=841,93, y=71,41, z=1214,92]] Chunk stats: MultiplayerChunkCache: 261, 261 Level seed: 0 Level generator: ID 02 - largeBiomes, ver 0. Features enabled: false Level generator options: Level spawn location: World: (181,88,-4013), Chunk: (at 5,5,3 in 11,-251; contains blocks 176,0,-4016 to 191,255,-4001), Region: (0,-8; contains chunks 0,-256 to 31,-225, blocks 0,0,-4096 to 511,255,-3585) Level time: 599167004 game time, 601375113 day time Level dimension: 0 Level storage version: 0x00000 - Unknown? Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Forced entities: 11 total; [EntityCustomNpc['Glacial_Prince'/11568, l='MpServer', x=865,50, y=74,00, z=1217,50], EntityOtherPlayerMP['Flaming_Spirit'/8834, l='MpServer', x=683,69, y=72,50, z=1204,91], EntityCustomNpc['Ice_Monarch'/11559, l='MpServer', x=829,50, y=10,26, z=1217,50], EntityCustomNpc['Ice_Monarch'/11561, l='MpServer', x=829,50, y=69,00, z=1217,50], EntityClientPlayerMP['Leolele99'/15112, l='MpServer', x=841,93, y=71,41, z=1214,92], EntityCustomNpc['Frozen_Guard'/11563, l='MpServer', x=832,53, y=69,00, z=1211,47], EntityOtherPlayerMP['coolhoXD'/11484, l='MpServer', x=-88,69, y=135,76, z=2607,31], EntityOtherPlayerMP['coolhoXD'/11484, l='MpServer', x=-135,00, y=143,59, z=2594,28], EntityOtherPlayerMP['coolhoXD'/11484, l='MpServer', x=-83,48, y=167,97, z=2640,58], EntityOtherPlayerMP['BugFaceHD'/8762, l='MpServer', x=752,56, y=73,00, z=1215,41], EntityCustomNpc['Frozen_Guard'/11565, l='MpServer', x=832,69, y=69,00, z=1223,41]] Retry entities: 0 total; [] Server brand: BungeeCord (git:BungeeCord-Bootstrap:1.8-SNAPSHOT:"01ce21e":unknown) <- kcauldron,cauldron,craftbukkit,mcpc,fml,forge Server type: Non-integrated multiplayer server Stacktrace: at net.minecraft.client.multiplayer.WorldClient.func_72914_a(WorldClient.java:373) at net.minecraft.client.Minecraft.func_71396_d(Unknown Source) at net.minecraft.client.Minecraft.func_99999_d(Unknown Source) 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:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details -- Details: Minecraft Version: 1.7.10 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_65, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 11825669704 bytes (11277 MB) / 12884901888 bytes (12288 MB) up to 12884901888 bytes (12288 MB) Mod Pack: Unknown / None LiteLoader Mods: 1 loaded mod(s)

• Presence Footsteps version r5 for 1.7.10 LaunchWrapper: 50 active transformer(s)
• Transformer: cpw.mods.fml.common.asm.transformers.PatchingTransformer
• Transformer: cpw.mods.fml.common.asm.transformers.MarkerTransformer
• Transformer: cpw.mods.fml.common.asm.transformers.SideTransformer
• Transformer: cpw.mods.fml.common.asm.transformers.EventSubscriptionTransformer
• Transformer: net.minecraftforge.classloading.FluidIdTransformer
• Transformer: codechicken.lib.asm.ClassHeirachyManager
• Transformer: codechicken.core.asm.InterfaceDependancyTransformer
• Transformer: codechicken.core.asm.TweakTransformer
• Transformer: codechicken.core.asm.DelegatedTransformer
• Transformer: codechicken.core.asm.DefaultImplementationTransformer
• Transformer: com.pau101.fairylights.core.FairyLightsClassTransformer
• Transformer: fastcraft.asm.FastCraftTransformer
• Transformer: invtweaks.forge.asm.ContainerTransformer
• Transformer: codechicken.nei.asm.NEITransformer
• Transformer: openeye.asm.MultiTransformer
• Transformer: ak.potionextension.asm.PotionEffectTransformer
• Transformer: ak.potionextension.asm.PotionArrayTransformer
• Transformer: lain.mods.skinport.asm.ASMTransformer
• Transformer: com.mumfrey.liteloader.transformers.event.EventProxyTransformer
• Transformer: com.mumfrey.liteloader.launch.LiteLoaderTransformer
• Transformer: com.mumfrey.liteloader.client.transformers.CrashReportTransformer
• Transformer: me.guichaguri.betterfps.transformers.MathTransformer
• Transformer: me.guichaguri.betterfps.transformers.EventTransformer
• Transformer: cpw.mods.fml.common.asm.transformers.DeobfuscationTransformer
• Transformer: cpw.mods.fml.common.asm.transformers.AccessTransformer
• Transformer: net.minecraftforge.transformers.ForgeAccessTransformer
• Transformer: mods.battlegear2.coremod.transformers.BattlegearAccessTransformer
• Transformer: codechicken.core.asm.CodeChickenAccessTransformer
• Transformer: invtweaks.forge.asm.ITAccessTransformer
• Transformer: cpw.mods.fml.common.asm.transformers.ModAccessTransformer
• Transformer: cpw.mods.fml.common.asm.transformers.ItemStackTransformer
• Transformer: lumien.chunkanimator.asm.ClassTransformer
• Transformer: lumien.resourceloader.asm.ClassTransformer
• Transformer: mods.battlegear2.coremod.transformers.EntityPlayerTransformer
• Transformer: mods.battlegear2.coremod.transformers.ModelBipedTransformer
• Transformer: mods.battlegear2.coremod.transformers.NetClientHandlerTransformer
• Transformer: mods.battlegear2.coremod.transformers.NetServerHandlerTransformer
• Transformer: mods.battlegear2.coremod.transformers.PlayerControllerMPTransformer
• Transformer: mods.battlegear2.coremod.transformers.ItemRendererTransformer
• Transformer: mods.battlegear2.coremod.transformers.MinecraftTransformer
• Transformer: mods.battlegear2.coremod.transformers.ItemStackTransformer
• Transformer: mods.battlegear2.coremod.transformers.ItemInWorldTransformer
• Transformer: mods.battlegear2.coremod.transformers.EntityAIControlledByPlayerTransformer
• Transformer: mods.battlegear2.coremod.transformers.EntityOtherPlayerMPTransformer
• Transformer: org.blockartistry.mod.DynSurround.asm.Transformer
• Transformer: cpw.mods.fml.common.asm.transformers.TerminalTransformer
• Transformer: com.mumfrey.liteloader.client.transformers.LiteLoaderEventInjectionTransformer
• Transformer: com.mumfrey.liteloader.client.transformers.MinecraftOverlayTransformer
• Transformer: com.mumfrey.liteloader.common.transformers.LiteLoaderPacketTransformer
• Transformer: cpw.mods.fml.common.asm.transformers.ModAPITransformer JVM Flags: 5 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms12288m -Xmx12288m -XX:+UseG1GC -XX:MaxGCPauseMillis=4 AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 103 FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1448 89 mods loaded, 89 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 UCHIJA FML{7.10.99.99} Forge Mod Loader UCHIJA Forge{10.13.4.1448} Minecraft Forge UCHIJA AppleMilkCore{1.1.0} AppleMilkCore UCHIJA CodeChickenCore{1.0.7.47} CodeChicken Core UCHIJA ivtoolkit{IvToolkit} 1.0.4 UCHIJA NotEnoughItems{1.0.5.118} Not Enough Items UCHIJA OpenEye{0.6} OpenEye UCHIJA PotionExtensionCore{1.7.10-1.1.0} PotionExtensionCore UCHIJA FamiliarsAPI{1.7.10} Familiars API UCHIJA dynamicswordskills{1.6} Dynamic Sword Skills UCHIJA battlegear2{1.7.10} Mine & Blade Battlegear 2 - Bullseye UCHIJA DamageIndicatorsMod{3.2.3} Damage Indicators UCHIJA abm{0.3.2} [Anime Battle Mod](ABM 0.3.2 for 1.7.10.jar) UCHIJA Baubles{1.0.1.10} Baubles UCHIJA adventurebackpack{1.7.10-0.8b} Adventure Backpack UCHIJA AnimationAPI{1.2.4} AnimationAPI UCHIJA DCsAppleMilk{1.7.10_2.8g} Apple&Milk&Tea! UCHIJA DCsNEIPluginAMT{1.7.10_1.0a} NEIPluginForAMT UCHIJA armourersWorkshop{1.7.10-0.38.1.98} Armourer's Workshop UCHIJA plushieWrapper{0.0.0} Plushie Wrapper UCHIJA Artifacts{1.1.1} Artifacts UCHIJA betterstorage{0.13.1.127} BetterStorage UCHIJA BiblioCraft{1.11.4} BiblioCraft UCHIJA ChickenChunks{1.3.4.19} ChickenChunks UCHIJA ChunkAnimator{@VERSION@} Chunk Animator UCHIJA CustomMainMenu{1.9.2} Custom Main Menu UCHIJA customnpcs{1.7.10d} CustomNpcs UCHIJA PTRModelLib{1.0.0} PTRModelLib UCHIJA props{2.2.1} Decocraft UCHIJA dungeonpack{1.7.10-1.0} Dungeon Pack UCHIJA dsurround{1.0.4.5BETA} Dynamic Surroundings UCHIJA ExtrabiomesXL{3.16.2} ExtrabiomesXL UCHIJA fairylights{1.4.0} Fairy Lights UCHIJA DefaultMobPack{1.7.10} DefaultMobPack UCHIJA ExtendedFamPack{1.7.10} ExtendedFamPack UCHIJA FastCraft{1.21} FastCraft UCHIJA ForgeMultipart{1.2.0.345} Forge Multipart UCHIJA McMultipart{1.2.0.345} Minecraft Multipart Plugin UCHIJA foxlib{1.7.10-0.7.0} FoxLib UCHIJA CARuins{0.1.9} Cellular Automata Generator UCHIJA GreatWallMod{0.1.9} Great Wall Mod UCHIJA WalledCityMod{0.1.9} Walled City Generator UCHIJA gvc{0.6.1} §aGliby's§f Voice Chat Mod UCHIJA godweapons{2.5} [Gods' Weapons](godweapons - 1.7.10 - 2.6.jar) UCHIJA GrimoireOfGaia{1.0.0} Grimoire of Gaia 3 UCHIJA HealingFountains{1.0.0} [HealingFountains](Healing Fountain.zip) UCHIJA inventorytweaks{1.59-dev-152-cf6e263} Inventory Tweaks UCHIJA levels{r2.2.2} Levels UCHIJA lycanitesmobs{1.13.0.5 - MC 1.7.10} [Lycanites Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA arcticmobs{1.13.0.5 - MC 1.7.10} [Lycanites Arctic Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA demonmobs{1.13.0.5 - MC 1.7.10} [Lycanites Demon Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA desertmobs{1.13.0.5 - MC 1.7.10} [Lycanites Desert Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA forestmobs{1.13.0.5 - MC 1.7.10} [Lycanites Forest Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA freshwatermobs{1.13.0.5 - MC 1.7.10} [Lycanites Freshwater Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA infernomobs{1.13.0.5 - MC 1.7.10} [Lycanites Inferno Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA junglemobs{1.13.0.5 - MC 1.7.10} [Lycanites Jungle Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA mountainmobs{1.13.0.5 - MC 1.7.10} [Lycanites Mountain Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA plainsmobs{1.13.0.5 - MC 1.7.10} [Lycanites Plains Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA saltwatermobs{1.13.0.5 - MC 1.7.10} [Lycanites Saltwater Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA shadowmobs{1.13.0.5 - MC 1.7.10} [Lycanites Shadow Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA swampmobs{1.13.0.5 - MC 1.7.10} [Lycanites Swamp Mobs](LycanitesMobsComplete 1.13.0.5 [1.7.10].jar) UCHIJA Mantle{1.7.10-0.3.2.jenkins191} Mantle UCHIJA maplecrafted{1.7} Offcial MapleCrafted Mod UCHIJA MetallurgyCore{4.0.4} Metallurgy Core UCHIJA TConstruct{1.7.10-1.8.8.build988} Tinkers' Construct UCHIJA Metallurgy{4.0.6} Metallurgy 4 UCHIJA MineMenu{1.2.0} MineMenu UCHIJA recallstones{0.5.2} Recall Stones UCHIJA RedstonePasteMod{1.6.2} Redstone Paste UCHIJA ResourceLoader{1.2} Resource Loader UCHIJA Roguelike{1.3.6.3} Roguelike Dungeons UCHIJA RPGAdvMod{1.0.0} RPGAdvMod UCHIJA runicdungeons{1.0.8b} Runic Dungeons UCHIJA saoui{1.4} Sword Art Online UI UCHIJA skinport{1.7.10-v6} SkinPort UCHIJA soundfilters{0.8_for_1.7.X} Sound Filters UCHIJA sco{0.9} Official Sword Craft Online Mod UCHIJA SCOTeleCrystals{0.9} SCOTeleCrystals UCHIJA kitchen{1.3.16} The Kitchen Mod UCHIJA tinkersdefense{1.2} Tinkers' Defense UCHIJA torchLevers{1.4.2} Torch Levers UCHIJA TravellersGear{1.16.6} Traveller's Gear UCHIJA TwilightForest{2.3.7} The Twilight Forest UCHIJA vending{1.2.3} vending UCHIJA weaponmod{v1.14.3} Balkon's WeaponMod UCHIJA yegamolchattels{1.1.1.1} Ye Gamol Chattels UCHIJA libsandstone{1.0.0} libsandstone UCHIJA ForgeMicroblock{1.2.0.345} Forge Microblocks GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.5.0 NVIDIA 359.06' Renderer: 'GeForce GTX 760/PCIe/SSE2' Mantle Environment: Environment healthy. TConstruct Environment: Environment healthy. Launched Version: 1.7.10-Forge10.13.4.1448-1.7.10 LWJGL: 2.9.1 OpenGL: GeForce GTX 760/PCIe/SSE2 GL version 4.5.0 NVIDIA 359.06, NVIDIA Corporation 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: [PresenceFootstepsOfficial.zip]
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)