error: No resource identifier found for attribute 'textAlignment' in package 'android'

Question

This is my res/layout mobile.xml file. Where is my mistake? When I run textview has this error.

    
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Answer 1

I think what problem could be in this line:

android:text="@+id/label"

try this:

android:text="@string/label"

Answer 2

textAlignment was added in API level 17 (Android 4.2).

Your emulator/device will need to be running 4.2+ for this to work.

Otherwise just use android:gravity="center"

<TextView
    android:id="@+id/grid_item_label"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="15dp"
    android:text="@+id/label"
    android:textSize="25dp"
    android:gravity="center" />