DVPs-iMac: csg DVP$ java -Xmx6144M -Xms6144M -jar minecraft_server.1.7.4.jar
[21:08:31] [Server thread/INFO]: Starting minecraft server version 1.7.4
[21:08:31] [Server thread/INFO]: Loading properties
[21:08:31] [Server thread/INFO]: Default game type: SURVIVAL
[21:08:31] [Server thread/INFO]: Generating keypair
[21:08:32] [Server thread/INFO]: Starting Minecraft server on *:25565
[21:08:32] [Server thread/INFO]: Preparing level "world"
[21:08:32] [Server thread/INFO]: Preparing start region for level 0
[21:08:33] [Server thread/INFO]: Preparing spawn area: 50%
[21:08:33] [Server thread/INFO]: Done (1.528s)! For help, type "help" or "?"
[21:09:36] [User Authenticator #1/INFO]: UUID of player griffin0505 is feff78fdf3d14fc999b881faf6270bc4
[21:09:36] [Server thread/INFO]: griffin0505[/25.19.22.166:59506] logged in with entity id 38 at (-352.1482965482415, 65.24918707874468, 49.822449774073824)
[21:09:36] [Server thread/INFO]: griffin0505 joined the game
[21:09:37] [Server thread/ERROR]: Encountered an unexpected exception
s: Exception ticking world
at net.minecraft.server.MinecraftServer.u(S… ~[minecraft_server.1.7.4.jar:?]
at lm.u(SourceFile:265) ~[minecraft_server.1.7.4.jar:?]
at net.minecraft.server.MinecraftServer.t(S… ~[minecraft_server.1.7.4.jar:?]
at net.minecraft.server.MinecraftServer.run… [minecraft_server.1.7.4.jar:?]
at lb.run(SourceFile:616) [minecraft_server.1.7.4.jar:?]
Caused by: java.lang.IllegalArgumentException: n must be positive
at java.util.Random.nextInt(Random.java:250… ~[?:1.6.0_51]
at agr.a(SourceFile:183) ~[minecraft_server.1.7.4.jar:?]
at agr.a(SourceFile:27) ~[minecraft_server.1.7.4.jar:?]
at agl.a(SourceFile:364) ~[minecraft_server.1.7.4.jar:?]
at apq.a(SourceFile:432) ~[minecraft_server.1.7.4.jar:?]
at ml.a(SourceFile:160) ~[minecraft_server.1.7.4.jar:?]
at aoo.a(SourceFile:772) ~[minecraft_server.1.7.4.jar:?]
at ml.c(SourceFile:95) ~[minecraft_server.1.7.4.jar:?]
at ml.d(SourceFile:108) ~[minecraft_server.1.7.4.jar:?]
at afs.e(SourceFile:311) ~[minecraft_server.1.7.4.jar:?]
at mm.g(SourceFile:234) ~[minecraft_server.1.7.4.jar:?]
at mm.b(SourceFile:137) ~[minecraft_server.1.7.4.jar:?]
at net.minecraft.server.MinecraftServer.u(S… ~[minecraft_server.1.7.4.jar:?]
… 4 more
[21:09:37] [Server thread/ERROR]: This crash report has been saved to: U
Added (1). here is another try as requested
18:51:28 WARN]: To start the server with more ram, launch it as "java -Xmx1024M -Xms1024M -jar minecraft_server.jar"
[18:51:28 INFO]: Loading properties
[18:51:28 INFO]: Default game type: SURVIVAL
[18:51:28 INFO]: Generating keypair
[18:51:28 INFO]: Starting Minecraft server on *:25565
[18:51:28 INFO]: Preparing level "world"
[18:51:28 INFO]: Preparing start region for level 0
[18:51:29 INFO]: Preparing spawn area: 56%
[18:51:30 INFO]: Done (1.518s)! For help, type "help" or "?"
[18:54:20 INFO]: UUID of player griffin0505 is feff78fdf3d14fc999b881faf6270bc4
[18:54:20 INFO]: griffin0505[/25.19.22.166:57807] logged in with entity id 37 at (-352.1482965482415, 65.24918707874468, 49.822449774073824)
[18:54:20 INFO]: griffin0505 joined the game
[18:54:20 ERROR]: Encountered an unexpected exception
s: Exception ticking world
at net.minecraft.server.MinecraftServer.u(S… ~[minecraft_server.1.7.4.jar:?]
at