android:layout_height="?attr/actionBarSize" is not working with support:design:23.0.0' library-ThrowExceptions

Exception or error:

If I set android:layout_height="56dp", I can see the toolbar in graphical layout. But when I set like the below,

            app:popupTheme="@style/ThemeOverlay.AppCompat.Light">  </>

toolbar is not showing in graphical layout.

Studio says that attr/actionBarSize is marked as private.

I am using

 compile ''
 compile ''

What could be the issue? How can i fix it! Yes, Studio is updated.

How to solve:

Use ?android:attr/actionBarSize instead of ?attr/actionBarSize


finally i did it just change your method

?attr/actionBarSize to ?android:attr/actionBarSize


It seems to be a bug in Android Studio:

The issue should be fixed in Android Studio 1.4 Preview 3. An update of the gradle plugin is also recommended. At least Gradle plugin version 1.4-alpha2

As a workaround you can disable the Lint-check in the build.gradle:

android {
    lintOptions {
        disable 'PrivateResource'


What is your app theme ?

Can you try to put android:theme="@style/Theme.AppCompat.Light" in your Toolbar layout ?


It was a problem in setting the theme.

Theme Values-v21.

 <style name="AppTheme" parent="Theme.AppCompat">
        <item name="android:colorPrimary">@color/purple_medium</item>
        <item name="android:colorPrimaryDark">@color/purple</item>
        <item name="android:colorAccent">@color/iron</item>
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="android:textColorHint">@color/black_lite</item>
        <item name="android:textColor">@color/black</item>
        <item name="android:textColorSecondary">@color/white</item>
        <item name="colorControlActivated">@color/purple</item>
        <item name="colorControlHighlight">@color/purple</item>
        <item name="colorControlNormal">@color/iron</item>
        <item name="android:textColorPrimary">@color/purple</item>
        <item name="android:windowContentTransitions">true</item>

when i selected the correct theme like here, it works fine for me!

enter image description here

Hope it helps.

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