SetContentView cannot find resource
<p>I am new to Android environment. For some reason, I am getting errors when trying to build. Specifically, these types where by the <code>activity_main.xml</code> layout file is being reported as not being found. However, I do see it there. There seems like there might be something messed up in my environment but I don't know what? I consistently get these types of error whether the resource exists or not. </p>

<pre><code>setContentView(R.layout.activity_main);
</code></pre>

<p>Any help appreciated.</p>
