Failed to load or instantiate
Failed to load or instantiate：
add this code in your xml:
xmlns:andro
xmlns:tools="http://schemas.android.com/tools"
xmlns:imagecontrol="http://schemas.android.com/apk/res-auto"
like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:andro
xmlns:tools="http://schemas.android.com/tools"
xmlns:imagecontrol="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >