Interact Error

Hi,
What means this interact error?

Code:

17:02:31 [SEVERE] Could not pass event PLAYER_INTERACT to CCraft
java.lang.NullPointerException
        at me.chris.ccraft.CCraftPlayerListener.onPlayerInteract(CCraftPlayerListener.java:36)
        at org.bukkit.plugin.java.JavaPluginLoader$10.execute(JavaPluginLoader.java:307)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:321)
        at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:168)
        at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:139)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:531)
        at net.minecraft.server.Packet15Place.a(SourceFile:57)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:223)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:75)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:105)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:451)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:361)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
>>

And how can a repair this?

 

It means there is an error in your code we can only guess about without it, some variable is uninitialized.

 

The Code:

Code:

public void onPlayerInteract(PlayerInteractEvent event)
    {
        Player player = event.getPlayer();
        Block block = event.getClickedBlock();
        Action action = event.getAction();
  
        if(action == Action.RIGHT_CLICK_AIR || action == Action.RIGHT_CLICK_BLOCK)
        {
            if(block.getType() == Material.SIGN_POST)
            {
                BlockState state = block.getState();

                if (state instanceof Sign)
                {
                    signpress((Sign) state, player);
                }
            }
        }
    }

 

block is null if action is Action.RIGHT_CLICK_AIR. So remove 'action == Action.RIGHT_CLICK_AIR' from the if or check whether block is null.

 

ok thx for your help