How to debug why a Gradle build failed?
Do what the error says. The item abc_alert_dialog_button_bar_height is defined twice in dimens.xml. So go to dimens.xml and remove one abc_alert_dialog_button_bar_height
Do what the error says. The item abc_alert_dialog_button_bar_height is defined twice in dimens.xml. So go to dimens.xml and remove one abc_alert_dialog_button_bar_height
use this <?xml version=”1.0″ encoding=”utf-8″?> <android.support.v7.widget.Toolbar xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:app=”http://schemas.android.com/apk/res-auto” android:id=”@+id/toolbar” app:theme=”@style/ThemeOverlay.AppCompat.Dark.ActionBar” android:layout_width=”match_parent” android:layout_height=”wrap_content” android:minHeight=”?attr/actionBarSize” app:navigationContentDescription=”@string/abc_action_bar_up_description” android:background=”?attr/colorPrimary” app:navigationIcon=”?attr/homeAsUpIndicator” app:title=”@string/action_settings” /> this is another example <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:app=”http://schemas.android.com/apk/res-auto” android:orientation=”vertical” android:layout_width=”match_parent” android:layout_height=”match_parent”> <android.support.v7.widget.Toolbar android:id=”@+id/toolbar” android:layout_width=”match_parent” android:layout_height=”8dp” android:minHeight=”?attr/actionBarSize” android:background=”?attr/colorPrimary” app:popupTheme=”@style/ThemeOverlay.AppCompat.Light”/> <FrameLayout android:id=”@+id/putPrefsContentHere” android:layout_width=”match_parent” android:layout_height=”wrap_content” /> </RelativeLayout>