lỗi

[16:49:18] [Server thread/WARN]: java.lang.NoSuchMethodException: net.minecraft.server.v1_12_R1.PacketPlayOutChat.<init>(net.minecraft.server.v1_12_R1.IChatBaseComponent, byte) [16:49:18] [Server thread/WARN]: at java.lang.Class.getConstructor0(Unknown Source) [16:49:18] [Server thread/WARN]: at java.lang.Class.getConstructor(Unknown Source) [16:49:18] [Server thread/WARN]: at com.zeshanaslam.actionhealth.Main.sendActionBar(Main.java:289) [16:49:18] [Server thread/WARN]: at com.zeshanaslam.actionhealth.Main.sendHealth2(Main.java:345) [16:49:18] [Server thread/WARN]: at com.zeshanaslam.actionhealth.Main.onDamage(Main.java:259) [16:49:18] [Server thread/WARN]: at sun.reflect.GeneratedMethodAccessor248.invoke(Unknown Source) [16:49:18] [Server thread/WARN]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [16:49:18] [Server thread/WARN]: at java.lang.reflect.Method.invoke(Unknown Source) [16:49:18] [Server thread/WARN]: at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) [16:49:18] [Server thread/WARN]: at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) [16:49:18] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:499) [16:49:18] [Server thread/WARN]: at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [16:49:18] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callEvent(CraftEventFactory.java:92) [16:49:18] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:579) [16:49:18] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:482) [16:49:18] [Server thread/WARN]: at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.handleLivingEntityDamageEvent(CraftEventFactory.java:611) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.EntityLiving.damageEntity0(EntityLiving.java:1339) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.EntityLiving.damageEntity(EntityLiving.java:863) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.EntityHuman.attack(EntityHuman.java:1005) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.EntityPlayer.attack(EntityPlayer.java:1302) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1609) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.PacketPlayInUseEntity.a(SourceFile:69) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.PacketPlayInUseEntity.a(SourceFile:13) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [16:49:18] [Server thread/WARN]: at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [16:49:18] [Server thread/WARN]: at java.util.concurrent.FutureTask.run(Unknown Source) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:747) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:405) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:678) [16:49:18] [Server thread/WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:576) [16:49:18] [Server thread/WARN]: at java.lang.Thread.run(Unknown Source)