I have 2 problems for the 1.12 version:
 

1. My game crashes when a nemesis is killed in multiplayer.
    
2. I can't use any of the commands for the nemesis mod. When I try to bring it up in the 'help' command all you get is:  "commands.nemesis_system.usage"
    
   I really like this mod and would love to find out how to fix this problem!
    
   Here is the error when a nemesis is killed:
   ---- Minecraft Crash Report ---- WARNING: coremods are present: LoadingPlugin (Bloodmoon-MC1.12.2-1.5.2.jar) BlurPlugin (Blur-1.0.4-14.jar) SHLoadingPlugin (ScalingHealth-1.12-1.3.2-77.jar) Extra Alchemy ASM (extraalchemy-0.3.6-release.jar) CXLibraryCore (cxlibrary-1.12.1-1.6.1.jar) MovingWorldCore (movingworld-1.12-6.342-full.jar) Contact their authors BEFORE contacting forge // Uh... Did I do that? Time: 11/22/17 12:46 AM Description: Ticking entity java.lang.NoSuchMethodError: net.minecraft.entity.item.EntityItem.func_70016_h(DDD)V at net.torocraft.nemesissystem.handlers.UpdateHandler.dropItemsInHands(UpdateHandler.java:95) at net.torocraft.nemesissystem.handlers.UpdateHandler.flee(UpdateHandler.java:79) at net.torocraft.nemesissystem.handlers.UpdateHandler.handleBodyGuardUpdate(UpdateHandler.java:55) at net.torocraft.nemesissystem.handlers.UpdateHandler.livingUpdate(UpdateHandler.java:42) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_298_UpdateHandler_livingUpdate_LivingUpdateEvent.invoke(.dynamic) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179) at net.minecraftforge.common.ForgeHooks.onLivingUpdate(ForgeHooks.java:554) at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2083) at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:295) at net.minecraft.entity.monster.EntityMob.func_70071_h_(EntityMob.java:50) at net.minecraft.world.World.func_72866_a(World.java:1986) at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:831) at net.minecraft.world.World.func_72870_g(World.java:1948) at net.minecraft.world.World.func_72939_s(World.java:1755) at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:612) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:764) at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:396) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:665) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) at java.lang.Thread.run(Unknown Source) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Server thread Stacktrace: at net.torocraft.nemesissystem.handlers.UpdateHandler.dropItemsInHands(UpdateHandler.java:95) at net.torocraft.nemesissystem.handlers.UpdateHandler.flee(UpdateHandler.java:79) at net.torocraft.nemesissystem.handlers.UpdateHandler.handleBodyGuardUpdate(UpdateHandler.java:55) at net.torocraft.nemesissystem.handlers.UpdateHandler.livingUpdate(UpdateHandler.java:42) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_298_UpdateHandler_livingUpdate_LivingUpdateEvent.invoke(.dynamic) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179) at net.minecraftforge.common.ForgeHooks.onLivingUpdate(ForgeHooks.java:554) at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2083) at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:295) at net.minecraft.entity.monster.EntityMob.func_70071_h_(EntityMob.java:50) at net.minecraft.world.World.func_72866_a(World.java:1986) at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:831) at net.minecraft.world.World.func_72870_g(World.java:1948) -- Entity being ticked -- Details: Entity Type: minecraft:zombie (net.minecraft.entity.monster.EntityZombie) Entity ID: 10916 Entity Name: Zombie Entity's Exact location: 534.47, 68.00, 819.42 Entity's Block location: World: (534,68,819), Chunk: (at 6,4,3 in 33,51; contains blocks 528,0,816 to 543,255,831), Region: (1,1; contains chunks 32,32 to 63,63, blocks 512,0,512 to 1023,255,1023) Entity's Momentum: 0.00, -0.08, -0.06 Entity's Passengers: [] Entity's Vehicle: ~~ERROR~~ NullPointerException: null Stacktrace: at net.minecraft.world.World.func_72939_s(World.java:1755) at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:612) -- Affected level -- Details: Level name: world All players: 1 total; [EntityPlayerMP['NicoCanPlay2'/397, l='world', x=544.95, y=65.66, z=811.57]] Chunk stats: ServerChunkCache: 808 Drop: 0 Level seed: -1329860336 Level generator: ID 06 - BIOMESOP, ver 0. Features enabled: true Level generator options: Level spawn location: World: (68,64,252), Chunk: (at 4,4,12 in 4,15; contains blocks 64,0,240 to 79,255,255), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511) Level time: 1163360 game time, 37075 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 11035 (now: true), thunder time: 46039 (now: false) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Stacktrace: at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:764) at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:396) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:665) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) at java.lang.Thread.run(Unknown Source) -- System Details -- Details: Minecraft Version: 1.12.2 Operating System: Windows 10 (amd64) version 10.0 Java Version: 1.8.0_151, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1847120344 bytes (1761 MB) / 2787639296 bytes (2658 MB) up to 2863661056 bytes (2731 MB) JVM Flags: 2 total; -Xms2G -Xmx3G IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 104 FML: MCP 9.42 Powered by Forge 14.23.0.2546 45 mods loaded, 45 mods active States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored | State | ID | Version | Source | Signature | |:--------- |:-------------------------------------------- |:-------------- |:--------------------------------------------- |:---------------------------------------- | | UCHIJAAAA | minecraft | 1.12.2 | minecraft.jar | None | | UCHIJAAAA | mcp | 9.42 | minecraft.jar | None | | UCHIJAAAA | FML | 8.0.99.99 | forge-1.12.2-14.23.0.2546-universal.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | UCHIJAAAA | forge | 14.23.0.2546 | forge-1.12.2-14.23.0.2546-universal.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | UCHIJAAAA | com.elytradev.movingworld.common.asm.coremod | | minecraft.jar | None | | UCHIJAAAA | movillages | 1.5.4 | [1.12]MoVillages-1.5.4.jar | None | | UCHIJAAAA | betterquesting | 2.5.236 | BetterQuesting-2.5.236.jar | None | | UCHIJAAAA | biomesoplenty | 7.0.1.2302 | BiomesOPlenty-1.12.2-7.0.1.2302-universal.jar | None | | UCHIJAAAA | bloodmoon | 1.5.2 | Bloodmoon-MC1.12.2-1.5.2.jar | d72e0dd57935b3e9476212aea0c0df352dd76291 | | UCHIJAAAA | chameleon | 1.12-4.1.3 | Chameleon-1.12-4.1.3.jar | None | | UCHIJAAAA | chesttransporter | 2.8.7 | ChestTransporter-1.12-2.8.7.jar | None | | UCHIJAAAA | coralreef | 2.0 | CoralReef-2.2-1.12.2.jar | None | | UCHIJAAAA | extendedrenderer | v1.0 | coroutil-1.12.1-1.1.22.jar | None | | UCHIJAAAA | coroutil | 1.12.1-1.1.20 | coroutil-1.12.1-1.1.22.jar | None | | UCHIJAAAA | configmod | v1.0 | coroutil-1.12.1-1.1.22.jar | None | | UCHIJAAAA | customizeddungeonloot | 1.0.1 | Customized Dungeon Loot (v.1.0.1).jar | None | | UCHIJAAAA | cxlibrary | 1.6.1 | cxlibrary-1.12.1-1.6.1.jar | None | | UCHIJAAAA | movingworld | 1.12-6.342 | movingworld-1.12-6.342-full.jar | None | | UCHIJAAAA | davincisvessels | @DVESSELSVER@ | davincisvessels-1.12-6.340-full.jar | None | | UCHIJAAAA | extraalchemy | 0.3.6-release | extraalchemy-0.3.6-release.jar | None | | UCHIJAAAA | hopperducts | 1.5 | hopperducts-mc1.12-1.5.jar | None | | UCHIJAAAA | infernalmobs | 1.7.3 | InfernalMobs-1.12.jar | None | | UCHIJAAAA | inventorypets | 1.4.9.9a | inventorypets-1.12-1.4.9.9a.jar | None | | UCHIJAAAA | journeymap | 1.12.2-5.5.2 | journeymap-1.12.2-5.5.2.jar | None | | UCHIJAAAA | limelib | 1.7.9 | limelib-1.12.2-1.7.9.jar | None | | UCHIJAAAA | magicalmap | 2.2.1 | Magical Map-1.12-2.2.1.jar | None | | UCHIJAAAA | mercurius_updater | 1.0 | MercuriusUpdater-1.12.2.jar | None | | UCHIJAAAA | mobtotems | 1.12.1-0.3.0 | mobtotems-1.12.1-0.3.0.jar | None | | UCHIJAAAA | morefurnaces | 1.10.3 | MoreFurnaces-1.12.2-1.10.3.jar | None | | UCHIJAAAA | torotraits | 1.12-1 | torotraits-1.12-1.jar | None | | UCHIJAAAA | nemesissystem | 1.12.1-2 | nemesissystem-1.12.1-2.jar | None | | UCHIJAAAA | reforged | 0.7.5 | Reforged-0.7.5-1.12+.jar | None | | UCHIJAAAA | roguelike | 1.8.0 | RoguelikeDungeons-1.12.2-1.8.0.jar | None | | UCHIJAAAA | roots | 0.103 | roots-2-0.103.jar | None | | UCHIJAAAA | roughmobs | 1.0 | roughMobs1.0.13-1.12.1.jar | None | | UCHIJAAAA | ruins | 16.9 | Ruins-1.12.jar | None | | UCHIJAAAA | silentlib | 2.2.12 | SilentLib-1.12-2.2.12-93.jar | None | | UCHIJAAAA | scalinghealth | 1.3.2 | ScalingHealth-1.12-1.3.2-77.jar | None | | UCHIJAAAA | spartanshields | 1.3a | SpartanShields-1.12-1.3a.jar | None | | UCHIJAAAA | bq_standard | 2.4.134 | StandardExpansion-2.4.134.jar | None | | UCHIJAAAA | storagedrawers | 1.12-5.2.5 | StorageDrawers-1.12.1-5.3.3.jar | None | | UCHIJAAAA | twilightforest | 3.3.202 | twilightforest-1.12.2-3.3.202-universal.jar | None | | UCHIJAAAA | waystones | 4.0.17 | Waystones_1.12.1-4.0.17.jar | None | | UCHIJAAAA | wopper | 1.12-r5 | Wopper-1.12-r5.jar | None | | UCHIJAAAA | zombieawareness | 1.12.1-1.11.10 | zombieawareness-1.12.1-1.11.10.jar | None | Loaded coremods (and transformers): LoadingPlugin (Bloodmoon-MC1.12.2-1.5.2.jar) lumien.bloodmoon.asm.ClassTransformer BlurPlugin (Blur-1.0.4-14.jar) com.tterrag.blur.BlurTransformer SHLoadingPlugin (ScalingHealth-1.12-1.3.2-77.jar) net.silentchaos512.scalinghealth.asm.SHClassTransformer Extra Alchemy ASM (extraalchemy-0.3.6-release.jar) zabi.minecraft.extraalchemy.asm.PotionTransformer CXLibraryCore (cxlibrary-1.12.1-1.6.1.jar) cubex2.cxlibrary.CoreModTransformer MovingWorldCore (movingworld-1.12-6.342-full.jar) Profiler Position: N/A (disabled) Player Count: 1 / 20; [EntityPlayerMP['NicoCanPlay2'/397, l='world', x=544.95, y=65.66, z=811.57]] Is Modded: Definitely; Server brand changed to 'fml,forge' Type: Dedicated Server (map_server.txt)
    
    
    

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Has this issue been fixed? I neeeeeeeeeeed this mod in my pack

I have the same issue. This occurred just last night on a SMP server.
https://pastebin.com/X723mtRm
There hasn't been much activity on this mod lately. Can we expect any updates?

Issue is still live. The mod uses Entity.setVelocity() on server side while that method is client side only, instead the motion properties should be directly modified.