Dex Loader Unable to execute Multiple dex files define

Okay, now i'm really stuck here. I don't know what to do, where to go or ANYTHING!

I have been trying to uninstall, reinstall, both SDK and Eclipse-versions, trying to Google this out, but nu-uh... Nothing!!!

I CAN run my app in emulator, but i cant EXPORT it...

[2011-10-07 16:35:30 - Dex Loader] Unable to execute dex: Multiple dex files define Lcom/dreamhawk/kalori/DataBaseHelper;

this is dataBaseHelper

package com.dreamhawk.kalori;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteException;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
import android.widget.Toast;



public class DataBaseHelper extends SQLiteOpenHelper {

    // The Android's default system path of your application database.
    private static String DB_PATH = "/data/data/com.dreamhawk.kalori/databases/";

    private static String DB_NAME = "livsmedel_db";
    private DataBaseHelper myDBHelper;
    private SQLiteDatabase myDb;

    private final Context myContext;

    private static final String DATABASE_TABLE = "Livsmedel";
    public static String DB_FILEPATH = "/data/data/com.dreamhawk.kalori/databases/lifemedel_db";
    public static final String KEY_TITLE = "Namn";
    public static final String KEY_BODY = "Kcal";
    public static final String KEY_ROWID = "_id";
    private static final int DATABASE_VERSION = 2;

    /**
     * Constructor Takes and keeps a reference of the passed context in order to
     * access to the application assets and resources.
     * 
     * @param context
     */
    public DataBaseHelper(Context context) {

        super(context, DB_NAME, null, 1);
        this.myContext = context;

        // checking