---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 17.05.16 16:40
Description: Exception in server tick loop

java.lang.NoSuchMethodError: net.minecraft.entity.EntityLivingBase.damageEntity_CB(Lnet/minecraft/util/DamageSource;F)Z
    at net.minecraft.entity.player.EntityPlayer.damageEntity_CB(EntityPlayer.java:1245)
    at net.minecraft.entity.player.EntityPlayer.func_70665_d(EntityPlayer.java:1234)
    at net.minecraft.entity.EntityLivingBase.func_70097_a(EntityLivingBase.java:894)
    at net.minecraft.entity.player.EntityPlayer.func_70097_a(EntityPlayer.java:1158)
    at net.minecraft.entity.player.EntityPlayerMP.func_70097_a(EntityPlayerMP.java:646)
    at net.minecraft.entity.player.EntityPlayer.func_71059_n(EntityPlayer.java:1404)
    at net.minecraft.network.NetHandlerPlayServer.func_147340_a(NetHandlerPlayServer.java:1558)
    at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(SourceFile:55)
    at net.minecraft.network.play.client.C02PacketUseEntity.func_148833_a(SourceFile:10)
    at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:244)
    at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:980)
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:430)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:798)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:658)