Newbie - Android coding issue of button

Question

I placed a button and set its id to @+id/ourButton.

Then on the MainActivity.java:

Button myButton = (Button) findViewById(R.id.ourButton);

It looks R.id.ourButton is undeclared or not existing.

Answer 1

1. Clean your project or restart the eclipse.
2. Look to the imports, the R imported maybe is not correct.
3. If anything is wrong in your layouts, new updates aren't added to the R file. Look at the errors panel, and possibly to a clean rebuild to see what errors are popping up.

Answer 2

You can either do a clean on your project or delete your R file, which will then be regenerated.