setContentView(R.layout.main); Gives error from start
<p>I'm just starting to develop with android, and a followed a tutorial on google to get everything set up. I'm using eclipse and I have both the android sdk and the eclipse plugin installed, but when I create a new Android Project, I get an error on this line from the start.</p>

<pre><code>public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
}
</code></pre>

<p>It Says that the "R" in "R.layout.main" does not exist. Is there class that i need to create or import? I'm really confused because i have thoroughly searched and cannot find anyone else with this issue. </p>
