Hello I Wanted To Make A Blood Effect! And i have these three classes: ParticleEffects: Code (Text): http://pastebin.com/6iMSYfcN Error: PHP: [08:57:47 ERROR]: Could not pass event EntityDamageByEntityEvent to KitPvp v1.2 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:305) ~[spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) ~[spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j ava:502) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:487) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.callEvent(Craf tEventFactory.java:85) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.callEntityDama geEvent(CraftEventFactory.java:538) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.handleEntityDa mageEvent(CraftEventFactory.java:451) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.handleLivingEn tityDamageEvent(CraftEventFactory.java:570) [spigot.jar:git-Spigot-26dfd01-5cb9b 70] at net.minecraft.server.v1_8_R2.EntityLiving.d(EntityLiving.java:1101) [ spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.EntityHuman.d(EntityHuman.java:859) [spi got.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.EntityLiving.damageEntity(EntityLiving.j ava:742) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.EntityHuman.damageEntity(EntityHuman.jav a:800) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.EntityPlayer.damageEntity(EntityPlayer.j ava:496) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.EntityHuman.attack(EntityHuman.java:1001 ) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.EntityPlayer.attack(EntityPlayer.java:10 60) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.PlayerConnection.a(PlayerConnection.java :1330) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.PacketPlayInUseEntity.a(SourceFile:52) [ spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.PacketPlayInUseEntity.a(SourceFile:11) [ spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.PlayerConnectionUtils$1.run(SourceFile:1 3) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [ ?:1.8.0_31] at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_31] at net.minecraft.server.v1_8_R2.SystemUtils.a(SourceFile:60) [spigot.jar :git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:7 10) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:3 68) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:6 51) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java :554) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at java.lang.Thread.run(Unknown Source) [?:1.8.0_31] Caused by: be.UnthinkableR.KitPvP.Particles.ParticleEffects$PacketInstantiationE xception: Packet instantiation failed at be.UnthinkableR.KitPvP.Particles.ParticleEffects.instantiatePacket(Pa rticleEffects.java:293) ~[?:?] at be.UnthinkableR.KitPvP.Particles.ParticleEffects.display(ParticleEffe cts.java:412) ~[?:?] at be.UnthinkableR.KitPvP.Events.Blood.onEntityDamageEvent(Blood.java:24 ) ~[?:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0 _31] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0 _31] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1 .8.0_31] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_31] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ~[spigot.jar:git-Spigot-26dfd01-5cb9b70] ... 26 more Caused by: java.lang.NullPointerException at be.UnthinkableR.KitPvP.Particles.ParticleEffects.instantiatePacket(Pa rticleEffects.java:291) ~[?:?] at be.UnthinkableR.KitPvP.Particles.ParticleEffects.display(ParticleEffe cts.java:412) ~[?:?] at be.UnthinkableR.KitPvP.Events.Blood.onEntityDamageEvent(Blood.java:24 ) ~[?:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0 _31] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0 _31] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1 .8.0_31] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_31] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ~[spigot.jar:git-Spigot-26dfd01-5cb9b70] ... 26 more [08:57:59 ERROR]: Could not pass event ServerListPingEvent to KitPvp v1.2 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:305) ~[spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav a:62) ~[spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j ava:502) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j ava:487) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.PacketStatusListener.a(PacketStatusListe ner.java:106) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.PacketStatusInStart.a(SourceFile:23) [sp igot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.PacketStatusInStart.a(SourceFile:8) [spi got.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.NetworkManager.a(NetworkManager.java:124 ) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.NetworkManager.channelRead0(NetworkManag er.java:325) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.NetworkManager.channelRead0(NetworkManag er.java:1) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChanne lInboundHandler.java:105) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst ractChannelHandlerContext.java:333) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra ctChannelHandlerContext.java:319) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessage Decoder.java:163) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst ractChannelHandlerContext.java:333) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra ctChannelHandlerContext.java:319) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessage Decoder.java:163) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst ractChannelHandlerContext.java:333) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra ctChannelHandlerContext.java:319) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at net.minecraft.server.v1_8_R2.LegacyPingHandler.channelRead(SourceFile :94) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst ractChannelHandlerContext.java:333) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra ctChannelHandlerContext.java:319) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHa ndler.java:150) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(Abst ractChannelHandlerContext.java:333) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(Abstra ctChannelHandlerContext.java:319) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChanne lPipeline.java:787) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(Abstra ctNioByteChannel.java:130) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.jav a:511) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEve ntLoop.java:468) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.ja va:382) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) [spigot. jar:git-Spigot-26dfd01-5cb9b70] at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThread EventExecutor.java:116) [spigot.jar:git-Spigot-26dfd01-5cb9b70] at java.lang.Thread.run(Unknown Source) [?:1.8.0_31] Caused by: java.lang.NullPointerException at be.UnthinkableR.KitPvP.Main.Main.a(Main.java:556) ~[?:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0 _31] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0 _31] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1 .8.0_31] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_31] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja va:301) ~[spigot.jar:git-Spigot-26dfd01-5cb9b70] ... 32 more ReflectionHandler: Code (Text): http://pastebin.com/Zj2Py4cu Why Doesn't it send the particles
Code (Text): Caused by: java.lang.NullPointerException at be.UnthinkableR.KitPvP.Particles.ParticleEffects.instantiatePacket(Pa rticleEffects.java:291) ~[?:?] ^ The useful part of that stack trace. Seems like that could only NPE if "packetPlayOutWorldParticles" was null, or you were passing a null location. Since I don't see how you're calling this, only the lib code that you are using, I can't really tell which. You need to make sure you're using the correct lib version for your server version. Or, since you're presumably targeting Spigot- just use the Spigot particle API? You can just call playEffect to spawn particle packets.
If I can append to that; I would suggest using player.spigot().playeffect() as its built into spigot so you won't need to use an external library. It is good but remember that method names change so using reflection from older versions may not always work. Since the method I showed is built into spigot, it shouldn't break per update.
ik but i've tried player.playEffect(world.getLocation(p.getlocation), Effect.TILEBREAK, 1) it doesn't work
TILEBREAK is special- I'd suggest testing with a normal particle to make sure you have everything working. TILEBREAK and BLOCKBREAK require some extra data for the material being used, and I'm honestly not sure if the Spigot effect API supports that.
I use effects like so: Code (Text): player.playEffect(player.getLocation(), Effect.STEP_SOUND, Material.STONE);
