Attribute already defined with incompatible format
<p>I'm getting this error in my project, and I cannot for the life of me find where my <code>navigationMode</code> is getting defined twice.</p>

<p><code>Error:(707) Attribute "navigationMode" already defined with incompatible format.</code></p>

<p>The source of the error is this file:
<code>/Users/temp/code/MyCoolProject/app/build/intermediates/res/merged/debug/values/values.xml</code></p>

<p>How is this file generated? I didn't write it.</p>

<p>Here it is defined in my: </p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;resources&gt;
    &lt;attr name="navigationMode"&gt;
        &lt;enum name="listMode" value="1" /&gt;
        &lt;enum name="normal" value="0" /&gt;
        &lt;enum name="tabMode" value="2" /&gt;
    &lt;/attr&gt;
&lt;/resources&gt;
</code></pre>

<p>How can I get rid of this error?</p>