cannot be resolved or not in a field

Question

OK I'm new to android dev's and Java so I'm having problems with on click method here's my code Ii know I've gotta be close thanks in advance all I want my button to do is when its clicked on the phone play a sound. But I get this error, pistol1 cannot be resolved or not in a field, it's a sound file that I want to play when I click on button.

import android.os.Bundle;
import android.app.Activity;
import android.media.MediaPlayer;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {        
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button one = (Button)this.findViewById(R.id.imageButton1);
        final MediaPlayer mp = MediaPlayer.create(this, R.raw.pistol1);
        one.setOnClickListener(new OnClickListener(){

            public void onClick(View v) {
                mp.start();
            }
        });     
    }
}

Answer 1

Are you sure your file is inside a folder called raw inside res folder ?

If so, did you made the good import ?

import my.project.name.R

or

import my.project.name.R.raw

Answer 2

As documentation is saying: Android doc.

Here is an example of how to play audio that's available as a local raw resource (saved in your application's res/raw/ directory):

MediaPlayer mediaPlayer = MediaPlayer.create(context, R.raw.sound_file_1);
mediaPlayer.start(); // no need to call prepare(); create() does that for you

In this case, a "raw" resource is a file that the system does not try to parse in any particular way. However, the content of this resource should not be raw audio. It should be a properly encoded and formatted media file in one of the supported formats.

Also you should look over the: Supported Media Formats