Pentium10 Pentium10 - 5 months ago 36
Android Question

frequent issues arising in android view, Error parsing XML: unbound prefix

I have frequent problem in android view,

Error parsing XML: unbound prefix on Line 2
.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:orientation="vertical" android:id="@+id/myScrollLayout"
android:layout_width="fill_parent" android:layout_height="wrap_content">
<TextView android:layout_height="wrap_content" android:layout_width="fill_parent"
android:text="Family" android:id="@+id/Family"
android:textSize="16px" android:padding="5px"
android:textStyle="bold" android:gravity="center_horizontal">
</TextView>

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="wrap_content"
android:orientation="vertical" android:scrollbars="vertical">
<LinearLayout android:orientation="vertical" android:id="@+id/myMainLayout"
android:layout_width="fill_parent" android:layout_height="wrap_content">
</LinearLayout>
</ScrollView>

</LinearLayout>

Answer

A couple of reasons that this can happen:

1) You see this error with an incorrect namespace, or a typo in the attribute. Like 'xmlns' is wrong, it should be xmlns:android

2) First node needs to contain: xmlns:android="http://schemas.android.com/apk/res/android"

3) If you are integrating AdMob check custom parameters like ads:adSize, you need

xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"

4) If you are using LinerLayout you might have to define tools

xmlns:tools="http://schemas.android.com/tools"