java.lang.IllegalArgumentException: File cannot be null

hello,

i got this error,and know what it means and why it is there.
(i looked at the Tutorials from bukkit for creating a YamlConfig and you need to create a File thats NULL... soo)
but how do i fix it?

More info needed? Please say..

THANKS IN ADVANCE!!

 

Sometimes it helps showing the code in question

 

Code:

package me.DJsZ.CommandLogger;
 
import java.io.File;
import java.io.InputStream;
import java.util.Calendar;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerCommandPreprocessEvent;
import org.bukkit.plugin.java.JavaPlugin;
 
public class CommandLogger  extends JavaPlugin implements Listener {
 
 
    @Override
    public void onEnable(){
     
        if (DataFile == null) {
            DataFile = new File(getDataFolder(), "data.yml");
         
            InputStream defDataStream = this.getResource("data.yml");
            if (defDataStream != null) {
                YamlConfiguration defData = YamlConfiguration.loadConfiguration(defDataStream);
             
                Data = YamlConfiguration.loadConfiguration(customConfigFile);
                Data.setDefaults(defData);
            }
        }
        if (customConfig == null) {
            this.reloadCustomConfig();
        }
     
     
        getLogger().info("CommandLogger has been succesfull enabled!");
        this.getServer().getPluginManager().registerEvents(this, this);
    }
 
     private FileConfiguration customConfig = null; //here it goes wrong
     private File customConfigFile = null;//here it goes wrong
 
     private FileConfiguration Data = null;//here it goes wrong
     private File DataFile = null;//here it goes wrong
 
 
    public void reloadCustomConfig() {
        if (customConfigFile == null) {
            customConfigFile = new File(getDataFolder(), "config.yml");
        }
        customConfig = YamlConfiguration.loadConfiguration(customConfigFile);
 
        // Look for defaults in the jar
        InputStream defConfigStream = this.getResource("config.yml");
        if (defConfigStream != null) {
            YamlConfiguration defConfig = YamlConfiguration.loadConfiguration(defConfigStream);
            customConfig.setDefaults(defConfig);
        }
    }

 

Look at the Bukkit Wiki, there is information on how to do it correctly

 

kk thanks i'll look

 

DJSanderrr
What about the error message? Can you post it?

 

just put the "customConfigFile == null" block before the "DataFile == null"