Rendering Problems
The following classes could not be found:
- android.support.v7.internal.widget.ActionBarOverlayLayout
解決方法：
styles.xml
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light">
<!-- Customize your theme here. -->
</style>改爲（加Base）
<!-- Base application theme. -->
<style name="AppTheme" parent="Base.Theme.AppCompat.Light">
<!-- Customize your theme here. -->
</style>