having trouble with my xml file. Error parsing xml :invalid token

I am having some troubles with my xml file. when i compile my android program, it says "error in parsing XML file" . I have been trying to locate this error but havent been sucessful. can anyone help? here is my code

               <LinearLayout xmlns:android="http://ift.tt/nIICcg"
                xmlns:tools="http://ift.tt/LrGmb4"
                android:orientation="vertical"
               android:layout_width="match_parent"
                android:layout_height="match_parent"
                tools:context="com.pace.daniel.pace.Timmer"
                android:layout_margin="10px"
                android:background="@drawable/bg"
                android:weightSum="1" >




               <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="10dp"
                android:weightSum="1"
                android:orientation="horizontal">
             <TextView
             android:id="@+id/cityText"
             style="?android:attr/textAppearanceMedium"

            android:text="Alexandria,VA"
           android:layout_weight="0.5"
           android:textSize="14sp"
           android:layout_height="wrap_content"
          android:layout_gravity="left"
          android:layout_width="match_parent" />
         <TextView
         android:id="@+id/condDescr"
         android:layout_marginLeft="25dp"
         android:layout_width="match_parent"
         android:layout_weight="0.5"
         android:layout_height="wrap_content"
          android:layout_gravity="right"
         android:text="Clear(Sky Clear)"
         />
        </LinearLayout>

       <LinearLayout
        android:layout_width="match_parent"
        android:layout_gravity="center_horizontal"
        android:layout_height="wrap_content"

        android:weightSum="1"
        android:orientation="horizontal">
        <TextView
        android:id="@+id/temp"
        android:layout_gravity="center_horizontal"
        android:layout_width="wrap_content"
        android:layout_weight="0.5"
        android:layout_height="wrap_content"
        android:text="30"
        android:textAlignment="center"
        android:layout_marginStart="60dp"
        android:layout_marginLeft="60dp"
        android:textColor="#ffffff"
        android:textSize="100sp"

        />

        < ImageView
        android:id="@+id/condIcon"
        android:layout_weight="0.5"
        android:layout_width="wrap_content"
        android:layout_marginRight="60dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"

          />

        </LinearLayout>

        <TextView
         android:id="@+id/timerValue"
         android:textAppearance="?android:attr/textAppearanceLarge"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:gravity="center_horizontal"
         android:text="00 : 00"
          android:layout_marginBottom="15dp"
          android:textAlignment="center"
           android:textColor="#ffffff"
            android:textSize="50sp" />
           <LinearLayout
           android:layout_width="fill_parent"
           android:layout_height="wrap_content"
           android:orientation="horizontal"
          android:weightSum="1">

          <ImageButton
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:id="@+id/start"
           android:layout_weight="0.33"
          android:background="#00000000"
           android:src="@drawable/stb"
           android:focusable="true" />


             <LinearLayout
            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:orientation="vertical"
             android:weightSum="1" >

            <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0.5"
            android:text="00:km"
            android:textSize="22sp"
            android:textAlignment="center"
            android:gravity="center_horizontal"

            android:id="@+id/distance"
            />

            </LinearLayout>



         <ImageButton
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/reset"
        android:layout_weight="0.33"
        android:background="#00000000"

        android:src="@drawable/reset" />

       </LinearLayout>
       <LinearLayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:orientation="horizontal"
      android:layout_gravity="center"
      android:layout_marginLeft="20dp"
      android:layout_marginRight="20dp"
      android:layout_marginTop="20dp"
      android:weightSum="1">

       <TextView
        android:id="@+id/pressLab"
        android:layout_gravity="center"
        android:layout_width="0dp"
        android:textColor="#e1e1e1"
        android:layout_marginLeft="60dp"
        android:layout_height="wrap_content"
        android:text="Pressure"
        android:textAlignment="center"
        android:layout_weight="0.5"
        android:textSize="22sp" />



        <TextView
        android:id="@+id/humLab"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:textSize="22sp"
        android:textColor="#e1e1e1"
        android:layout_weight="0.5"
        android:text="Humidity" />


         </LinearLayout>
          <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:weightSum="1">

          <TextView
            android:id="@+id/press"
            android:textSize="20sp"
            android:layout_marginLeft="60dp"
            android:text="1018.1pa"
            android:layout_weight="0.5"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"

            />
            <TextView
            android:id="@+id/hum"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:text="71.0%"
            android:layout_marginLeft="50dp"
            android:layout_weight="0.5"
            android:textSize="20sp"
            android:layout_gravity="center"
            />
           </LinearLayout>

          <TextView
           android:id="@+id/windLab"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:textSize="22sp"
           android:layout_marginTop="10dp"
           android:layout_gravity="center"
           android:textColor="#e1e1e1"
           android:text="Wind" />

          <TextView
          android:id="@+id/windSpeed"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"

          android:textSize="20sp"
          android:text="6.7mps"
         android:layout_gravity="center"
          />


         <TextView
         android:id="@+id/windDeg"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
           />

        </LinearLayout>