Error on my first android application. Hello world.

Hello, Im trying to do a simple Hello Word android application. But I'm having these errors.


Error(3, 19) package android.app does not exist

Error(4, 18) package android.os does not exist

Error(6, 33) cannot find symbol
symbol: class Activity

Error(11, 26)cannot find symbol
symbol: class Bundle

Error(12, 9)cannot find symbol
symbol  : variable super

Error(13, 9)cannot find symbol
symbol  : method setContentView(int)

Error(10, 5)method does not override or implement a method from a supertype.




When I double click error, im get this:


package com.example.Hello;

import android.app.Activity;
import android.os.Bundle;

public class MyActivity extends Activity {
    /**
     

• Called when the activity is first created.

     */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
    }
}



Sorry for the ignorance, Im new on Android Applications.





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Original message URL: http://devnet.jetbrains.net/message/5499513#5499513