title: Couldn't resolve resource @color/colorAccent
body: <p>I got this error. Would somebody know how to fix it. All i had written</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;resources&gt;
      &lt;color name="background_color"&gt;#009688&lt;/color&gt;
      &lt;color name="white"&gt;#FFFFFF&lt;/color&gt;
      &lt;color name="black"&gt;#000000&lt;/color&gt;
      &lt;color name="white_greyish"&gt;#EEEEEE&lt;/color&gt;
      &lt;color name="button_selectorcolor"&gt;#9E9E9E&lt;/color&gt;
  &lt;/resources&gt;
  </code></pre>