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" >