title: Xamarin-Studio Android Form Designer: Android Version not installed
body: <p>Recently, I took an interest in Xamarin, a system used for running C# code on both mobile and stationary devices. After setting up my Android environment using the Xamarin Studio ( a modified version of the popular IDE MonoDevelop), I had a few problems which I managed to fix, this being one that I've spent some time working on to no avail. </p>
  
  <p><strong>Problem</strong> </p>
  
  <p>After creating an application, and opening the Main.axml file where the Layout of the app is stored, I get this message instead.</p>
  
  <p><a href="http://i.stack.imgur.com/7cjsN.png" rel="nofollow">http://i.stack.imgur.com/7cjsN.png</a></p>
  
  <p>Here is the XML code associated with the form.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"&gt;
      &lt;Button
          android:id="@+id/myButton"
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:text="@string/hello" /&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>Obviously, this is a problem, as I can't design Android forms with this message. One notable thing is that it says 'Android 4.4 (v10) on the top panel. I am using the most recent SDK from the Android site (<a href="http://developer.android.com/sdk/index.html" rel="nofollow">http://developer.android.com/sdk/index.html</a>), so I am confused as to why it is telling me that the Android Version is not installed. </p>
  
  <p><strong>A few things I've tried</strong></p>
  
  <p>When designing forms in Xamarin, it gives you a sample emulated system to build your forms off of, in order to determine the size of the screen and other possible associated variables. It gives you the option between various Nexus devices where you can build your forms. I tried switching devices, but I still receive the error message.</p>
  
  <p>I've re-installed the SDK and also done a fresh install of Xamarin itself. These solutions helped with a few of my <em>other</em> problems, but this one has been persistent.</p>
  
  <p><strong>Conclusion</strong> </p>
  
  <p>Why is Xamarin giving me this message? What is the problem? Please let me know if you need any other information.</p>