How can I put Rating Bar

I'm trying to put rating bar stars instead of spinner on this code but getting error again and again can anybody after trying my luck i came here. Can anybody help me please. Thanks

    <RatingBar
    android:id="@+id/review_rating"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:numStars="3"
    android:stepSize="1.0"
    android:entries="@array/rating"
    android:rating="2.0" />
    </RatingBar>


 package com.example.facilitiesreviewapp;

public class AddReviewActivity extends ActionBarActivity {

String id;

@Override
protected void onCreate(Bundle savedInstanceState) {
    setTitle("Add Reviews");
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_add_review);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.add_review, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    Intent intent;

    if(id == R.id.search_station)
    {
        intent = new Intent(this, SearchActivity.class);
        startActivity(intent);
    }
    else if(id == R.id.add_station)
    {
        intent = new Intent(this, AddStationActivity.class);
        startActivity(intent);
    }

    return super.onOptionsItemSelected(item);
}

public void onResume()
{
    super.onResume();

    Intent intent = getIntent();
    id = intent.getStringExtra(SearchActivity.EDITID);
}

public void saveReview(View view)
{
    //Get fields
    EditText dateView = (EditText) findViewById(R.id.review_date);
    EditText commentView = (EditText) findViewById(R.id.review_comments);
    ratingBar ratingView = (ratingBar) findViewById(R.id.review_rating);
    Spinner featureView = (Spinner) findViewById(R.id.review_feature);

    //Get Content
    String review_date = dateView.getText().toString();
    String review_comment = commentView.getText().toString();
    String review_rating = ratingView.getSelectedItem().toString();
    String review_feature = featureView.getSelectedItem().toString();

    //Validation
    boolean errors = false;
    String error_msg = "";

    if(review_date.equals(""))
    {
        errors = true;
        error_msg += "Date field is required";
    }

    if(errors)
    {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setMessage(error_msg).setTitle("Error in submission");
        AlertDialog dialog = builder.create();
        dialog.show();
    }
    else
    {
        DbHandler dbh = new DbHandler(this);
        SQLiteDatabase db = dbh.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(DbHandler.ReviewHandler.COLUMN_NAME_STATION_ID, id);
        values.put(DbHandler.ReviewHandler.COLUMN_NAME_DATE, review_date);
        values.put(DbHandler.ReviewHandler.COLUMN_NAME_FEATURE, review_feature);
        values.put(DbHandler.ReviewHandler.COLUMN_NAME_RATING, review_rating);
        values.put(DbHandler.ReviewHandler.COLUMN_NAME_COMMENTS, review_comment);

        long newRowID = db.insert(DbHandler.ReviewHandler.Table_Name, "", values);

        db.close();
        dbh.close();

        Intent intent = new Intent(this, ReviewsActivity.class);
        intent.putExtra(SearchActivity.EDITID, id);
        startActivity(intent);
    }
}

}