File layoutlib.jar doesnt exist
<p>I'm using Android Studio 1.5.1 and install every package needed using SDK Manager. I choose to use API 21 and install all the package under this API. But when I open a project, i get no preview but this.</p>

<pre><code>File C:\Users\uyung\AppData\Local\Android\android-sdk\platforms\android-21\data\layoutlib.jar doesnt exist
</code></pre>

<p>Some people suggest to install another API package. But unfortunately I have limit storage at my partition. Any idea to make the preview work?</p>