Error Could not load 'plugins/plugin.jar' in folder 'plugins'

Ok so i was coding this plugin and i got "
Could not load 'plugins/Numb version1.1.jar' in folder 'plugins' "

This is my code

Main

Code:

package me.FatalAura.Numb;

import org.bukkit.command.CommandExecutor;
import org.bukkit.plugin.java.JavaPlugin;

import me.FatalAura.Numb.Commands.Depression;

public class Main extends JavaPlugin {
 
    public void onEnable() {
        System.out.println("(!)Numb Plugin version 1.1 is now starting up(!)");
        this.getCommand("depression").setExecutor((CommandExecutor)new Depression());
    }
    public void onDisable() {
        System.out.println("(!)Numb Plugin version 1.1 is now shutting down(!)");
    }
 
}

Command Class

Code:

package me.FatalAura.Numb.Commands;

import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;

public class Depression implements CommandExecutor {

    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
        Player player = (Player) sender;
        if (sender instanceof Player) {
            player.addPotionEffect(new PotionEffect(PotionEffectType.WITHER, 2, 5));
            player.sendMessage(ChatColor.translateAlternateColorCodes('&', "&4&lRIP..."));
        }
        else {
            sender.sendMessage("Denied.");
        }
        return true;
    }

}

Plugin YML

Code:

name: Numb
version: 1.1
main: me.FatalAura.Numb.Main
Description: Numb your depression

commands:
    Depression:
        usage: /<command>

What did i do wrong im new to this

 

first when posting code use:

Code:

[ code]/*your code*/[ /code]

or

Code:java

[ syntax=java]/*your code*/[ /syntax]

(without the spaces)

I hope you used spaces (or tabs) in the yml.
If you have winRar installed open your jar and check if the plugin.yml is in the jar.
if not -> add plugin.yml in your 'src' folder and compile the plugin and make sure that it is included
if it is -> I don't know...

 

@IanAsf

I am not absolutely sure, but I think you should use 2 spaces instead of 4 spaces as tab in your plug-in.yml.
And you should really show the full server log if this doesn't help either.

 

Code:

/* Could not load 'plugins/Numb version1.1.jar' in folder 'plugins' org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml     at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:152) ~[craftbukkit-1.8.jar:git-Bukkit-7019900]     at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:133) [craftbukkit-1.8.jar:git-Bukkit-7019900]     at org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugins(CraftServer.java:288) [craftbukkit-1.8.jar:git-Bukkit-7019900]     at org.bukkit.craftbukkit.v1_8_R1.CraftServer.<init>(CraftServer.java:250) [craftbukkit-1.8.jar:git-Bukkit-7019900]     at net.minecraft.server.v1_8_R1.PlayerList.<init>(PlayerList.java:69) [craftbukkit-1.8.jar:git-Bukkit-7019900]     at net.minecraft.server.v1_8_R1.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit-1.8.jar:git-Bukkit-7019900]     at net.minecraft.server.v1_8_R1.DedicatedServer.init(DedicatedServer.java:133) [craftbukkit-1.8.jar:git-Bukkit-7019900]     at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:484) [craftbukkit-1.8.jar:git-Bukkit-7019900]     at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172] Caused by: java.io.FileNotFoundException: Jar does not contain plugin.yml     ... 9 more */[code]

 

Like this?

 

oh

Ok so the plugin works now and is running when i type /depression it does only half a heart how to i make it so it give wither 2 for 5 seconds

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

I think you need to do this for that:

Code:Java

player.addPotionEffect(new PotionEffect(PotionEffectType.WITHER, 40, 1));

The 40 should be the duration of the potion effect. (in ticks) and the 1 is the amplifier, in this case this means Wither 2. (Starts from 0, therefore you need to minus by 1)
Since 1 second is 20 ticks you can do 20*2 so that you can just replace 2 by the amount of seconds you want it to last.
Hope this helps.