I get this crash the last 2 hours three times. I dont know why. Whats the meaning of "ticking entity"?? A time bomb from mobs?? If you couldnt fix this, you maybe could explain me whats the meaning of Ticking Entity should be. Code: 2013-03-01 19:33:44 [SEVERE] net.minecraft.server.v1_4_R1.ReportedException: Ticking entity 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:584) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849) 2013-03-01 19:33:45 [SEVERE] Caused by: java.util.ConcurrentModificationException 2013-03-01 19:33:45 [SEVERE] at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:778) 2013-03-01 19:33:45 [SEVERE] at java.util.LinkedList$ListItr.next(LinkedList.java:713) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.EntityPlayer.j_(EntityPlayer.java:162) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.World.entityJoinedWorld(World.java:1332) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.WorldServer.entityJoinedWorld(WorldServer.java:548) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.World.playerJoinedWorld(World.java:1313) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.World.tickEntities(World.java:1191) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.WorldServer.tickEntities(WorldServer.java:445) 2013-03-01 19:33:45 [SEVERE] at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:580) 2013-03-01 19:33:45 [SEVERE] ... 4 more 2013-03-01 19:33:45 [SEVERE] Encountered an unexpected exception ReportedException net.minecraft.server.v1_4_R1.ReportedException: Ticking entity at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:584) at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224) at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494) at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427) at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849) Caused by: java.util.ConcurrentModificationException at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:778) at java.util.LinkedList$ListItr.next(LinkedList.java:713) at net.minecraft.server.v1_4_R1.EntityPlayer.j_(EntityPlayer.java:162) at net.minecraft.server.v1_4_R1.World.entityJoinedWorld(World.java:1332) at net.minecraft.server.v1_4_R1.WorldServer.entityJoinedWorld(WorldServer.java:548) at net.minecraft.server.v1_4_R1.World.playerJoinedWorld(World.java:1313) at net.minecraft.server.v1_4_R1.World.tickEntities(World.java:1191) at net.minecraft.server.v1_4_R1.WorldServer.tickEntities(WorldServer.java:445) at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:580) ... 4 more
Have you read the sticky? There's a section about this in it: http://forums.bukkit.org/threads/troubleshooting-common-problems-with-solution.44590/