无法打开数据库文件，怎么回事，谁能帮我解决解决啊！！！

下面是我的代码信息：

<span style="white-space:pre">	   button.setOnClickListener(new OnClickListener() {
<span style="white-space:pre">			</span>
<span style="white-space:pre">			</span>@Override
<span style="white-space:pre">			</span>public void onClick(View v) {
<span style="white-space:pre">				</span>/**
<span style="white-space:pre">				</span> * 创建一个File文件，然后把数据库的路径给它
<span style="white-space:pre">				</span> */
<span style="white-space:pre">				</span>File file=new File("D:\\Android Database\\song.db");
<span style="white-space:pre">				</span>/**
<span style="white-space:pre">				</span> * 打开数据库
<span style="white-space:pre">				</span> */
<span style="white-space:pre">				</span>SQLiteDatabase database=SQLiteDatabase.openOrCreateDatabase(file, null);
<span style="white-space:pre">				</span>Cursor cursor=database.rawQuery("select * from Teacher", new String[]{});
<span style="white-space:pre">				</span>if (cursor.moveToFirst()) {
<span style="white-space:pre">					</span>Toast.makeText(MainActivity.this, cursor.getInt(0), Toast.LENGTH_LONG).show();
<span style="white-space:pre">				</span>}
<span style="white-space:pre">			</span>}</span>

下面是我的异常信息：

11-06 01:47:36.645: E/Database(338): sqlite3_open_v2("D:\Android Database\song.db", &handle, 6, NULL) failed11-06 01:47:36.645: D/AndroidRuntime(338): Shutting down VM11-06 01:47:36.645: W/dalvikvm(338): threadid=1: thread exiting with uncaught exception (group=0x40015560)11-06 01:47:36.655: E/AndroidRuntime(338): FATAL EXCEPTION: main11-06 01:47:36.655: E/AndroidRuntime(338): android.database.sqlite.SQLiteException: unable to open database file11-06 01:47:36.655: E/AndroidRuntime(338): 	at android.database.sqlite.SQLiteDatabase.dbopen(Native Method)11-06 01:47:36.655: E/AndroidRuntime(338): 	at android.database.sqlite.SQLiteDatabase.<init>(SQLiteDatabase.java:1849)11-06 01:47:36.655: E/AndroidRuntime(338): 	at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:820)11-06 01:47:36.655: E/AndroidRuntime(338): 	at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:854)11-06 01:47:36.655: E/AndroidRuntime(338): 	at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:847)