Solved Scoreboard Error

Hey guys,
I am playing around a bit with scoreboards and I get this error, while trying to change the displayname of a objective:

Code:

21:10:10 [WARNUNG] [TestPlug] Task #62 for TestPlug v1.0.83 generated an exception
java.lang.IllegalStateException: Unregistered scoreboard component
        at org.bukkit.craftbukkit.v1_6_R3.scoreboard.CraftScoreboardComponent.checkState(CraftScoreb
oardComponent.java:13)
        at org.bukkit.craftbukkit.v1_6_R3.scoreboard.CraftObjective.setDisplayName(CraftObjective.ja
va:43)
        at de.MiniDigger.TestPlug.API.ScrollingScoreBoard$1.run(ScrollingScoreBoard.java:92)
        at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftTask.run(CraftTask.java:53)
        at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftSchedule
r.java:345)
        at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:524)
        at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:227)
        at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:488)
        at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:421)
        at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)

here are the interesting snippets of my code:

Code:

public Scoreboardboard;
board = Bukkit.getScoreboardManager().getNewScoreboard();
final Objective obj = board.registerNewObjective("obj", "dummy");
obj.setDisplayName("TEST");
obj.setDisplaySlot(DisplaySlot.SIDEBAR);
taskid = Bukkit.getScheduler().scheduleSyncRepeatingTask(
       Main.getInstance(), new Runnable() {
 
       @Override
       public void run() {
       String msg = color + next(this.msg, -1);
       if (msg.length() <= tcolor.length()) {
       obj.setDisplayName(color + idle);
       cancelTask(-1);
       } else {
       index += length;
 
       obj.setDisplayName(msg);//line with the error
       }
       }
       }, 20L * 3, delay);

Thanks for your reply

 

If i was you i would make a class that implements Runnable and remove the final modifier of the objective this could be the cause of your problem

 

thecrystalflame this wasnt the cause. I messed something up in my code. I dont get any errors now but the player dont get the scoreboard displayed now. I am using p.setScoreboard(board);
EDIT: I think i sloved that too

 

make sure there is at least one score in the board with a set value.

 

thecrystalflame this was the issue