XML : Error with XML file - Android(Error parsing XML: not well-formed (invalid token))

So i got this error and i know its a frequent one but non of the answers on this site have helped me.

XML:

  <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"  xmlns:tools="http://schemas.android.com/tools"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:paddingBottom="@dimen/activity_vertical_margin"  android:paddingLeft="@dimen/activity_horizontal_margin"  android:paddingRight="@dimen/activity_horizontal_margin"  android:paddingTop="@dimen/activity_vertical_margin"  tools:context="com.example.app.LoginActivity" >    <RelativeLayout      android:layout_width="fill_parent"      android:layout_height="wrap_content"       android:background="#ffffff">        <!--  Header Starts-->      <LinearLayout           android:id="@+id/linear_layout_header_id"          android:layout_width="fill_parent"          android:layout_height="wrap_content"          android:background="@layout/header_gradient"          android:paddingTop="5dip"          android:paddingBottom="5dip">                <!-- Logo Start-->              <ImageView                   android:layout_width="wrap_content"                  android:layout_height="wrap_content"                  android:src="@drawable/hd_logo"                  android:layout_marginLeft="10dip"                  android:layout_marginStart="10dip                  />        </LinearLayout>               <!-- Logo Ends -->      <!--  Header Ends -->        <!-- Footer Start -->      <LinearLayout           android:id="@+id/linear_layout_footer_id"          android:layout_width="fill_parent"          android:layout_height="90dip"          android:background="@layout/footer_repeat"          android:layout_alignParentBottom="true">      </LinearLayout>        <!-- Footer Ends -->        <!-- Login Form -->      <!-- Login Form Ends -->      </RelativeLayout>    </ScrollView>    

So i have got the Error parsing XML: not well-formed (invalid token) on the closing tag of the LinearLayout </LinearLayout>. Also the closing tag of the ImageView /> is blue and not green. What am i doing wrong?