Have to clean entire Android project in Eclipse every time an XML file is edited

I am having an annoying problem. I am using a Fragment in my Android project, and it's causing me endless pain, as I have to clean the project every single time I edit my main xml file. This is how it looks: ``` <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <fragment xmlns:map="http://schemas.android.com/apk/res-auto" android:id="@+id/map" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" class="com.google.android.gms.maps.MapFragment" map:uiRotateGestures="false" map:uiScrollGestures="false" map:uiZoomControls="false" map:uiZoomGestures="false" map:cameraZoom="18" /> <ScrollView android:id="@+id/scroller" android:layout_width="250dp" android:layout_height="100dp" android:layout_alignParentTop="true" android:layout_alignParentLeft="true" android:background="@android:color/white"> <TextView android:id="@+id/debug_text" android:layout_width="fill_parent" android:layout_height="fill_parent" android:textSize="10sp" /> </ScrollView> </RelativeLayout> ``` And if I edit even one character of this file, all lines beginning with "map" get highlighted with red, and the fragment opening tag gets highlighted as well. The error I am getting is: ``` Unexpected namespace prefix "xmlns" found for tag fragment ``` And for the lines beginning with "map" the error is: ``` Unexpected namespace prefix "map" found for tag fragment ``` If I clean the project the problem goes away and I can build and run the project just fine, but as I am editing it a lot right now it is very very annoying. Could somebody help please?