XML Stack Overflow

I am using eclipse Juno in ubuntu 12.04 environment for android app development. I am facing one very strange problem with eclipse. whenever I press CTRL+SPACE I get error saying "content assist is not available at current location" and this is only happening when I use CTRL+SPACE for the views declared inside <android.support.v4.widget.DrawerLayout> tag. I googled a lot , but dint find working solution. some people responded that "Here you using, android.support.v4.widget.DrawerLayout and hence the issue" here

please check my xml file below:

<android.support.v4.widget.DrawerLayout xmlns:android="http://ift.tt/nIICcg"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <!-- The main content view -->



        <GridView
            android:id="@+id/gridView1"
            android:layout_width="match_parent"

            android:layout_height="match_parent"
            android:layout_gravity="center"
            android:gravity="center"
            android:layout_centerInParent="true" 
            android:columnWidth="50dp"
            android:fitsSystemWindows="true"
            android:horizontalSpacing="10dp"
            android:numColumns="2"
            android:rowHeight="50dp"
            android:background="#000000"
            android:stretchMode="columnWidth"
            android:verticalSpacing="10dp" >
        </GridView>
    <!-- The navigation drawer -->

    <LinearLayout
        android:id="@+id/drawer"
        android:layout_width="240dp"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:background="#f4f4f4"
        android:orientation="vertical" >

        <ExpandableListView
            android:id="@+id/drawer_list1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@drawable/blue_gray_back"
            android:cacheColorHint="#00000000"
            android:groupIndicator="@android:color/transparent" />
    </LinearLayout>

</android.support.v4.widget.DrawerLayout>

Now If I remove

 <android.support.v4.widget.DrawerLayout xmlns:android="http://ift.tt/nIICcg"
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
 </android.support.v4.widget.DrawerLayout>

everything works perfectly. all the attributes of the GridView are showing in suggession by pressing CTRL+SPACE. So I figured out the problem is occuring due to <android.support.v4.widget.DrawerLayout>. How can I resolve this issue, because I must have to use above tab in xml? Please help me to solve this issue.