Dex Loader无法执行多个dex文件定义

Question

好的,现在我真的被困在这里了.我不知道该做什么,去哪里或任何事情!

我一直试图卸载,重新安装SDK和Eclipse版本,试图谷歌这个,但nu-uh ......没什么!

我可以在模拟器中运行我的应用程序,但我无法导出它...

[2011-10-07 16:35:30 - Dex Loader]无法执行dex:多个dex文件定义Lcom/dreamhawk/kalori/DataBaseHelper;

这是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 database and open it if exists
        if (checkDataBase()) {
            openDataBase();
        } else {
            try {
                this.getReadableDatabase();
                createDatabase();
                this.close();
                openDataBase();

            } catch (IOException e) {
                throw new Error("Error copying database");
            }
            Toast.makeText(context, "Livsmedelsdatabasen importerad",
                    Toast.LENGTH_LONG).show();
        }

    }

    private boolean checkDataBase() {
        SQLiteDatabase checkDB = null;
        boolean exist = false;
        try {
            String dbPath = DB_PATH + DB_NAME;
            checkDB = SQLiteDatabase.openDatabase(dbPath, null,
                    SQLiteDatabase.OPEN_READONLY);
        } catch (SQLiteException e) {
            Log.v("db log", "database does't exist");
        }

        if (checkDB != null) {
            exist = true;
            checkDB.close();
        }
        return exist;
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        // db.execSQL(DATABASE_CREATE);
    }

     @Override
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

           Log.w("Kalori", "Upgrading database from version " + oldVersion + " to "
               + newVersion + ", which will destroy all old data");
           db.execSQL("DROP TABLE IF EXISTS Livsmedel");
           onCreate(db);

       }

    public DataBaseHelper open() throws SQLException {
        myDBHelper = new DataBaseHelper(myContext);
        myDb = myDBHelper.getWritableDatabase();
        return this;
    }

    public void createDatabase() throws IOException {

        InputStream assetsDB = myContext.getAssets().open("livsmedel_db");
        // OutputStream dbOut = new FileOutputStream(DB_PATH);
        String outFileName = DB_PATH + DB_NAME;
        OutputStream dbOut = new FileOutputStream(outFileName);

        Log.d("DH", "index=" + assetsDB);
        byte[] buffer = new byte[1024];
        int length;
        while ((length = assetsDB.read(buffer)) > 0) {
            dbOut.write(buffer, 0, length);
        }

        dbOut.flush();
        dbOut.close();
        assetsDB.close();
    }

    public Cursor fetchAllNotes() {

        return myDb.query(DATABASE_TABLE, new String[] { KEY_ROWID, KEY_TITLE,
                KEY_BODY }, null, null, null, null, null);
    }

    public void openDataBase() throws SQLException {
        String dbPath = DB_PATH + DB_NAME;
        myDb = SQLiteDatabase.openDatabase(dbPath, null,
                SQLiteDatabase.OPEN_READWRITE);
    }

}

我猜测:

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

但我不知道该怎么办......请帮忙!!! :'(

Answer 1

bin/dexedLibs中有一个文件libs中存在相同的文件

在libs中删除它,它应该工作.

对我来说这是android-support-v4.jar.

希望这可以帮助

Answer 2

通过以下简单步骤修复它

• 右键单击项目
• 去物业
• 单击Java Build Path
• 在"订单和导出"选项卡上取消选中jar文件和依赖项库
• 重建项目.

Answer 3

1. 重启eclipse,
2. 删除bin&gen文件夹和
3. 最后清理项目并再次构建它.

这对我有用.. :)

Answer 4

我Help->Check今天(2011年10月21日)更新了eclipse(更新),现在我没有看到错误.在它之前我有错误" Unable to execute dex: Multiple dex files define".希望这可以帮助.

Answer 5

问题解决了.

在升级之前,我有3个android项目:App1,App2和Lib.Lib是一个Android库项目,App1和App2使用它.

升级ADT和SDK后,我看到了错误

[2012-12-05 15:54:10 - Dex Loader] Unable to execute dex: Multiple dex files define Lxxx;
[2012-12-05 15:54:10 - TrailGuide] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Lxxx;

解决方案是在App1和App2中删除名为"Lib_src"的文件夹.