Android Studio 2.3 Beta 1 + Support 25.1.0 = Preview broken
<p>Android Studio 2.3 Canary 3. Support libraries 25.1.0.</p>

<p>Layout previews are totally broken. Anything that contains a support-related View seems to break during preview.</p>

<p>In all cases, this is the beginning of the stack:</p>

<pre><code>Exception Details java.lang.NoSuchFieldError: ViewBackgroundHelper   
at android.support.v7.widget.AppCompatBackgroundHelper.loadFromAttributes(AppCompatBackgroundHelper.java:46)   
at android.support.v7.widget.AppCompatImageView.&lt;init&gt;(AppCompatImageView.java:63)   
at android.support.v7.widget.AppCompatImageView.&lt;init&gt;(AppCompatImageView.java:56)
....
</code></pre>

<p>.. Etc.</p>

<p>Doesn't matter what the layout is like, I'm now getting this bloody <code>ViewBackgroundHelper</code>-related issue come up. Doesn't seem to matter what kind of layout is is or what views are in it.. anything that seems to go through AppCompat hits this error in the preview.</p>

<p>Have never seen this before. Previously had Android Studio 2.3 Canary 2 + Support libs 25.0.1.</p>

<p>Seems like it's just not possible to <em>ever</em> upgrade Android Studio or its support libs without spending hours on this type of stuff, hey?</p>

<p>Thanks for any hints, thanks-</p>

<p><strong>UPDATE</strong></p>

<p>Looks like I'm not the only one. Found a bug logged here, starred by many people already:</p>

<p><a href="https://code.google.com/p/android/issues/detail?id=230183">https://code.google.com/p/android/issues/detail?id=230183</a></p>

<p><strong>UPDATE 2</strong></p>

<p>Still an issue with AS 2.3 Beta 1. Still can't see my layouts. Same <code>java.lang.NoSuchFieldError: ViewBackgroundHelper</code> error everywhere.</p>