title: No resource found that matches the given name (at 'colorAccent' with value '@color/Accent')
body: <p>I develop an Android app but i get almost exactly the same error like <a href="https://stackoverflow.com/questions/37178610/error7-34-no-resource-found-that-matches-the-given-name-at-coloraccent-wi/37917881#37917881">here</a>
  with: No resource found that Matches the given Name (at 'colorAccent' with value '@Color/accent').</p>
  
  <p>as descript here (link) I have no colors.xml file in my Project. But i have found in my Android.sdk that i have there two colors.xml files. should i use one of these? or do i have to create a new colors.xml file. If i have to create a new file can you tell me what i have to write into the file?</p>
  
  <p>I'm a beginner in Programm resp. App developing so I hope you have a little understanding for me. I use Visual Studio with Xamarin v4.1 </p>
  
  <p>I hope anyone could help me ;)</p>
  
  <p>Here you see my Strings.xml Code file:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt;
  &lt;resources&gt;
    &lt;style name="MyTheme" parent="MyTheme.Base"&gt;
    &lt;/style&gt;
    &lt;style name="MyTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar"&gt;
      &lt;!--If you are using revision 22.1 please use just windowNoTitle. Without android:--&gt;
      &lt;item name="windowNoTitle"&gt;true&lt;/item&gt;
      &lt;!--We will be using the toolbar so no need to show ActionBar--&gt;
      &lt;item name="windowActionBar"&gt;false&lt;/item&gt;
      &lt;!-- Set theme colors from http://www.google.com/design/spec/style/color.html#color-color-palette--&gt;
      &lt;!-- colorPrimary is used for the default action bar background --&gt;
      &lt;item name="colorPrimary"&gt;#00FFAA&lt;/item&gt;
      &lt;!-- colorPrimaryDark is used for the status bar --&gt;
      &lt;item name="colorPrimaryDark"&gt;#004D40&lt;/item&gt;
      &lt;!-- colorAccent is used as the default value for colorControlActivated
       which is used to tint widgets --&gt;
      &lt;item name="colorAccent"&gt;@color/accent&lt;/item&gt;
      &lt;!-- You can also set colorControlNormal, colorControlActivated
       colorControlHighlight and colorSwitchThumbNormal. 
      &lt;item name="colorControlNormal"&gt;#00897B&lt;/item&gt;
      &lt;item name="colorControlActivated"&gt;#1DE9B6&lt;/item&gt;--&gt;
      &lt;item name="windowActionModeOverlay"&gt;true&lt;/item&gt;
    &lt;/style&gt;
  &lt;/resources&gt;
  </code></pre>