title: Cannot resolve symbol '?attr/actionBarSize' after updating Android Studio from 2.3 to 3.0 for buildToolsVersion '26.0.2'
body: <p>After updating Android Studio from 2.3 to 3.0 I changed <code>buildToolsVersion</code> from 26.0.0 to 26.0.2 and after that I am getting this error:</p>
  <pre><code>Cannot resolve symbol '?attr/actionBarSize
  </code></pre>
  <p>Xml code:</p>
  <pre><code>&lt;android.support.v7.widget.Toolbar
      android:id=&quot;@+id/toolbar&quot;
      android:layout_width=&quot;match_parent&quot;
      android:layout_height=&quot;?attr/actionBarSize&quot;
      android:background=&quot;@color/colorPrimary&quot;
      app:popupTheme=&quot;@style/ThemeOverlay.AppCompat.Light&quot;
      app:titleTextColor=&quot;@android:color/white&quot;/&gt;
  </code></pre>
  <p>Dependencies:</p>
  <pre><code>compile 'com.android.support:appcompat-v7:26.1.0'
  compile 'com.android.support:design:26.1.0'
  </code></pre>