Right clicking sign error: Null

Hey all,

I'm coding a wilderness plugin for practice and I have an event that's supposed to arbitrarily teleport the player when they right-click the wilderness sign. This is the code I have so far:

Code:

@EventHandlerpublic void onSignInteraction(PlayerInteractEvent event) {
      if (event.getAction() == Action.RIGHT_CLICK_BLOCK) {
            if (event.getClickedBlock().getType() == Material.OAK_WALL_SIGN) {
                  Sign sign = (Sign) event.getClickedBlock().getState();
                  if (sign.getLine(1).equalsIgnoreCase("[Wild TP"))
                        event.getPlayer().sendMessage("You have clicked the sign!");}
            }
      }
}

However, every time I right click the sign, it brings up an error in console.

Code:

[15:56:22 ERROR]: Could not pass event PlayerInteractEvent to AdvancedWilderness v1.0-SNAPSHOT
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:316) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:66) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:507) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:492) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at org.bukkit.craftbukkit.v1_13_R2.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:304) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.PlayerInteractManager.a(PlayerInteractManager.java:458) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1222) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.PacketPlayInUseItem.a(PacketPlayInUseItem.java:37) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.PacketPlayInUseItem.a(PacketPlayInUseItem.java:1) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:9) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
        at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
        at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:199) [spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:896) [spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:417) [spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:831) [spigot.jar:git-Spigot-1a3504a-dfa7583]
        at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:729) [spigot.jar:git-Spigot-1a3504a-dfa7583]
        at java.lang.Thread.run(Thread.java:835) [?:?]
Caused by: java.lang.NoSuchFieldError: OAK_WALL_SIGN
        at me.recordtime.advancedwilderness.Events.SignInteraction.onSignInteraction(SignInteraction.java:15) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
        at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
        at java.lang.reflect.Method.invoke(Method.java:567) ~[?:?]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:312) ~[spigot.jar:git-Spigot-1a3504a-dfa7583]
        ... 17 more

I believe it's the Material.OAK_WALL_SIGN that's causing the error. But whenever I replace it with Material.OAK_SIGN, the same error pops up. I have no idea how to fix this. Any help is appreciated

 

@timtower Do you mean this line:

Code:

 api-version: 1.13 

in plugin.yml?

 

@timtower Why does that line matter though? Is is not supposed to say 1.13?

 

@timtower Okay I've tried doing what you said and it still doesn't work. Whenever I run the code

Code:

@EventHandlerpublic void onSignInteraction(PlayerInteractEvent event) {
    if (event.getAction() == Action.RIGHT_CLICK_BLOCK) {
        event.getPlayer().sendMessage("You clicked " + event.getClickedBlock() + "Type: " + event.getClickedBlock().getType());
    }
}

It outputs WALL_SIGN. But whenever I add the extra statement

Code:

@EventHandlerpublic void onSignInteraction(PlayerInteractEvent event) {
    if (event.getAction() == Action.RIGHT_CLICK_BLOCK) {
        event.getPlayer().sendMessage("You clicked " + event.getClickedBlock() + "Type: " + event.getClickedBlock().getType());
        if (event.getClickedBlock().getType() == Material.OAK_WALL_SIGN) {
            event.getPlayer().sendMessage("Success");
        }
    }
}

It brings up the error in my question and doesn't print success. I still don't understand what's going on...

 

@InsertNameHere If it the type is 'WALL_SIGN' and you are checking for 'OAK_WALL_SIGN' then of course it doesn't go through.

 

@KarimAKL Okay, but every time I type Material.WALL_SIGN the only option that pops up is Material.OAK_WALL_SIGN. Am I going crazy here?

 

@timtower I believe so. I'm running Minecraft 1.13.2 and the plugin Minecraft 1.13.2 iirc. I made it a while ago though and only recently started working on the right-click sign event.

 

@InsertNameHere You should be able to see the file used by navigating to the project build path.

 

@KarimAKL How do I do that? Is it in Project Structures?

 

@InsertNameHere Which IDE do you use?

 

@KarimAKL I'm using IntelliJ IDEA.

 

@InsertNameHere I use Eclipse myself so i'm not sure how to do it with IntelliJ IDEA, but i found a video that might help.
It's only 48 seconds long.