2015-02-03 05:05:14 [SEVERE] Error occurred while enabling Prism v2.0.4-18 (Is it up to date?)
java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()Ljava/util/Collection;
	at me.botsko.prism.players.PlayerIdentification.cacheOnlinePlayerPrimaryKeys(PlayerIdentification.java:379)
	at me.botsko.prism.Prism.onEnable(Prism.java:174)
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:467)
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:383)
	at org.bukkit.craftbukkit.v1_6_R3.CraftServer.loadPlugin(CraftServer.java:278)
	at org.bukkit.craftbukkit.v1_6_R3.CraftServer.enablePlugins(CraftServer.java:260)
	at net.minecraft.server.MinecraftServer.func_71243_i(MinecraftServer.java:521)
	at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:485)
	at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:428)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:224)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:630)
	at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)