无法启动服务

我正在尝试启动服务

Intent gattServiceIntent = new Intent(this, BluetoothLeService.class);
        bindService(gattServiceIntent, mServiceConnection, BIND_AUTO_CREATE);
        startActivity(gattServiceIntent);

然而,我得到了以下信息

07-14 20:58:13.296: E/AndroidRuntime(21311): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.rcfun.blecar/com.rcfun.blecar.util.BluetoothLeService}; have you declared this activity in your AndroidManifest.xml?

我试图声明如下

    <service
        android:name=".BluetoothLeService"
        android:enabled="true">            
    </service>   

和

    <service
        android:name="com.rcfun.blecar.util.BluetoothLeService"
        android:enabled="true">            
    </service>  

但这两个声明都给出了与我前面提到的相同的错误。