I keep getting this error : "org.bukkit.plugin.InvalidPluginException: java.lang.IllegalArgumentExce

[visual marten]

Here is my main class: https://pastebin.com/BACHPiN5 and here is my tpa class: https://pastebin.com/7Ls9MTKX . Can someone help me because I cannot seem to use DI as my main class

[lime rock]

private static final Teleportationutils instance = new Teleportationutils();
public static Teleportationutils getInstance() {
return instance;
}

You can remove all that if you are using DI

Which should also fix your issue

[jagged niche]

public final class Teleportationutils extends JavaPlugin {
 
    private static Teleportationutils instance;
    public static Teleportationutils getInstance() {
        return instance;
    }
    @Override
    public void onEnable() {

        instance = this;
        // Plugin startup logic
        getCommand("up").setExecutor(new up());
        getCommand("tpa").setExecutor(new tpa(this));
    }
 
    @Override
    public void onDisable() {
        // Plugin shutdown logic
    }
}

[lime rock]

Instance can’t be final

Other than that, yeah that works too

[jagged niche]

'this' refers to this instance of the class

and you're taking the instance that gets created and throwing it into the instance var

this class gets initialised by spigot and then the onEnable() gets called first

[visual marten]

okay

[jagged niche]

let us know if it works

I mean it should lol

[visual marten]

This gave me the error https://pastebin.com/1PwJYpmF

[visual marten]

Ah! The timings system is turned off is that why?

[jagged niche]

Timings has nothing to do with this. Timings is used to debug server performance

Going to need some code from the PluginCommand class

    at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.handle(CraftScheduler.java:533) ~[folia-1.20.1.jar:git-Folia-"edafbce"]
    at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.runTaskTimerAsynchronously(CraftScheduler.java:257) ~[folia-1.20.1.jar:git-Folia-"edafbce"]
    at org.bukkit.craftbukkit.v1_20_R1.scheduler.CraftScheduler.runTaskTimerAsynchronously(CraftScheduler.java:199) ~[folia-1.20.1.jar:git-Folia-"edafbce"]
    at travis.limified.com.teleportationutils.commands.tpa.onCommand(tpa.java:45) ~[teleportationutils-1.20.1.jar:?]
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[folia-api-1.20.1-R0.1-SNAPSHOT.jar:?]
    ... 14 more```

[lime rock]

Sir this is spigot

That’s folia, folia makes a ton of changes regarding schedulers

[jagged niche]

oh shit it is xD

Yeah uh, run your code using a spigot jar and then get back to us, otherwise you'll have to seek help in the papermc discord I guess

[lime rock]

If you want to use folia you have to use their scheduler system

[visual marten]

Do you have any docs for that?

Sorry about that