很神奇的问题，把源代码仔细检查了一遍没发现什么问题，代码是从网上copy的样例代码，应该不会有bug。

然后重新从网上复制粘贴了一把就好了，很让我无语。可能是Eclipse抽风了。

附上一篇网上找到的一篇关于此问题不错的帖子，还不错，供参考

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[解决方案]Unexpected namespace prefix “xmlns” found for tag Layout

原帖地址http://www.mythroad.net/2013/02/19/%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88unexpected-namespace-prefix-xmlns-found-for-tag-layout/

形如这样的代码，出现Error：

<?xml version="1.0" encoding="utf-8"?>

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:background="@drawable/background" >

<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<TextView android:id="@+id/menu_top_text"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/name_version"

android:textColor="@color/black"

android:textSize="20sp" />

Error:"Unexpected namespace prefix"xmlns" found for tag LinearLayout". I tried the solutions provided in other similar questions also but it didn't work for me. Same error is occurr.

Solution:

Please try following:

1.Remove "?xml version="1.0" encoding="utf-8"?" line from the top.

2.Remove "xmlns:android="http://schemas.android.com/apk/res/android" from all the place excluding the ScrollView. I believe it is sufficient to inform it to the application once.

去掉 第二个"xmlns:android="http://schemas.android.com/apk/res/android"

That's All Thanks!

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