title: "ic_launcher cannot be resolved or is not a field"
body: <p>I was following a tutorial of Android and 
  When I was done everything, I got a problem in this code:</p>
  
  <pre><code>getDrawable(R.drawable.ic_launcher);
  </code></pre>
  
  <p>And I got the message </p>
  
  <pre><code>**"ic_launcher cannot be resolved or is not a field"**
  </code></pre>
  
  <p>What's more, my icon doesn't appear in tablet emulator, 
  but starts automatic. 
  What's going on?</p>