Error Message

You might have some problem with your XML layout files. This kind of error usually comes when your (Resource) file i.e. R.java is not properly generated due to some errors in your layout file. Try to debug your XML files and if the error still persists then post your layout code too.

Hi Sanatkumar -

I tried to debug and I'm getting the same message. There doesn't appear to be a problem with my xml editor.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:gravity="center_horizontal" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" >

<ImageView
    android:id="@+id/imageView1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scaleType="fitCenter"
    android:src="@drawable/ball" />

<LinearLayout
    android:id="@+id/linearLayout1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageView1"
    android:layout_centerVertical="true"
    android:gravity="center_horizontal"
    android:orientation="horizontal"
    android:weightSum="1" >

    <View
        android:id="@+id/view1"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_weight="0.2" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_weight="0.6"
        android:gravity="center_horizontal"
        android:shadowColor="@android:color/white"
        android:shadowRadius="10"
        android:textColor="@android:color/white"
        android:textSize="32dp" />

    <View
        android:id="@+id/View01"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_weight="0.2" />
</LinearLayout>

</RelativeLayout>

I am unsure man, try cleaning your project in eclipse maybe then you might see some errors. Now its time for our teachers to save us :)

Hi Sanatkumar - I was able to figure out the problem. One last thing that I seem to be stuck on is there's an error on the last line. I think I possibly missed a { somewhere. Do you see where I may have missed it?

private void animateAnswer(){ AlphaAnimation fadeInAnimation = new AlphaAnimation(0, 1); fadeInAnimation.setDuration(1500); fadeInAnimation.setFillAfter(true);

    mAnswerLabel.setAnimation(fadeInAnimation);
}    

private void playSound(){
    MediaPlayer player = MediaPlayer.create(this, R.raw.crystal_ball);
    player.start();
     player.setOnCompletionListener(new OnCompletionListener() {
         public void onCompletion(MediaPlayer mp) {
             mp.release();
    }


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

}

private void handleNeanswer() {
    String answer =mAllTruths.getAnswer();

    //update the label with the dynamic answer
    mAnswerLabel.setText(answer);           
    animateAllTruths();
    animateAnswer();
    playSound();
}

Yes I think in the playsound function you mess up the curly braces when you define an anonymous class.

private void playSound(){ MediaPlayer player = MediaPlayer.create(this, R.raw.crystal_ball); player.start(); player.setOnCompletionListener(new OnCompletionListener() { public void onCompletion(MediaPlayer mp) { mp.release(); } }); //based on your posted code, u were missing these, i guess

Thanks, I look and found that. Strangely, now, I'm getting a yellow hazard, not a red error on some of my fields that says "The method handleNeanswer() from the type MainActivity is never used locally" This came from that particular section, but also says it for a couple more of my "m" classes. private void playSound(){ MediaPlayer player = MediaPlayer.create(this, R.raw.crystal_ball); player.start(); player.setOnCompletionListener(new OnCompletionListener() { public void onCompletion(MediaPlayer mp) { mp.release(); } }); }

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

}

private void handleNeanswer() {
    String answer =mAllTruths.getAnswer();

    //update the label with the dynamic answer
    mAnswerLabel.setText(answer);           
    animateAllTruths();
    animateAnswer();
    playSound();
}};

On my activity main xml page, I have the following error under image view, "The markup in the document following the root element must be well-formed."

<ImageView android:id="@+id/imageView1" android:layout_width="match_parent" android:layout_height="match_parent" android:scaleType="fitCenter" android:src="@drawable/ball" />

Watch for opening and closing tags in the xml file. Those yellow markers indicate warnings and usually those don't matter, you can still run the application with them hanging out there. And try to follow the video tutorials as closely as possible; whenever teachers write code on the screen, you should pause the video and write them in your editor too.

Yep, I always do. Problem with this one was, I was writing Python and SQL at the same time and my computer crashed. Once I restored everything, I had errors.

I can't run the app yep because there's an error on the xml file tab as I referenced earlier. I'm receiving an error on image view.

<ImageView
    android:id="@+id/imageView1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scaleType="fitCenter"
    android:src="@drawable/ball" />