제가 안드로이드를 처음 해보는데..

텍스트 입력하고  버튼 누르면 토스트? 되는건..

물어물어 잘 했는데요..

그런데..버튼 눌러서 비프음 나게 하는건..

잘 안되네요..ㅠㅠ
package exam.SoundPoolTest;

import android.app.Activity;
import android.media.AudioManager;
import android.media.SoundPool;
import android.os.Bundle;
import android.view.View;

public class SoundPoolTest extends Activity {
   
    SoundPool pool;
    int ddok;
   
    @Override
 public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        pool = new SoundPool(1, AudioManager.STREAM_MUSIC, 0);
        ddok = pool.load(this, R.raw.ddok, 1);                                              이부분에서  raw에 빨간줄 가고
                                                                                                                  raw cannot be resolved or is not a field
                                                                                                                  2 quick fixes available:
                                                                                                                     Create field 'raw' in type 'R'
                                                                                                                     Create constant 'raw' in type 'R'
                                                                                                                  이런게 나오는데 어떻게 해야하는건가요..;;
        
        findViewById(R.id.Button01).setOnClickListener(mClickListener);
        findViewById(R.id.Button02).setOnClickListener(mClickListener);
        findViewById(R.id.Button03).setOnClickListener(mClickListener);
        findViewById(R.id.Button04).setOnClickListener(mClickListener);
    }
   
    Button.OnClickListener mClickListener = new Button.OnClickListener() {
     public void onClick(View v) {
      MediaPlayer player;
      switch (v.getId()) {
      case R.id.Button01:
       pool.play(ddok, 1, 1, 0, 0, 1);
       break;
      case R.id.Button02:
       pool.play(ddok, 0.5f, 0.5f, 0, 0, 1);
       break;
      case R.id.Button03:
       pool.play(ddok, 1, 1, 0, 2, 1);
       break;
      case R.id.Button04:
       pool.play(ddok, 1, 1, 0, 0, 0.5f);
       break;
      }
     }
    };
}