The following classes could not be instantiated: - android.support.v7.internal.widget.ActionBarOverl

The following classes could not be instantiated: - android.support.v7.internal.widget.ActionBarOverlayLayout

java.lang.NoClassDefFoundError: Could not initialize class android.support.v7.internal.widget.ActionBarOverlayLayout

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

at java.lang.reflect.Constructor.newInstance(Constructor.java:526)

at org.jetbrains.android.uipreview.ViewLoader.createNewInstance(ViewLoader.java:413)

at org.jetbrains.android.uipreview.ViewLoader.loadView(ViewLoader.java:105)

at com.android.tools.idea.rendering.LayoutlibCallback.loadView(LayoutlibCallback.java:177)

.......................................

解决办法：

打开文件res/values/styles.xml，

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">    <!-- Customize your theme here. --></style>

修改为

<style name="AppTheme" parent="Base.Theme.AppCompat.Light.DarkActionBar">    <!-- Customize your theme here. --></style>