02:55:44 [INFO] unknown block type=X1484
02:55:44 [WARNING] [WebSandboxMC] Task #1679 for WebSandboxMC v0.4 generated an exception
java.lang.NoSuchMethodError: org.bukkit.Server.getOnlinePlayers()Ljava/util/Collection;
at io.github.satoshinm.WebSandboxMC.bridge.PlayersBridge.sendPlayers(PlayersBridge.java:42)
at io.github.satoshinm.WebSandboxMC.ws.WebSocketServerThread.handleNewClient(WebSocketServerThread.java:171)
at io.github.satoshinm.WebSandboxMC.ws.WebSocketFrameHandler$1.run(WebSocketFrameHandler.java:46)
at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftTask.run(CraftTask.java:58)
at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:344)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:777)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:732)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:614)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)