Android : error parsing unbound prefix when trying to integrate admob

Ive looked everywhere trying to find an answer to this problem and found nothing that solved it. im sure its something really simple but nothing is working. when i try to run the app i get the error: error parsing xml: unbound prefix. heres what i have.<?xml version="1.0" encoding="utf-8"?> enter code here<LinearLayout enter code herexmlns:android="http://schemas.android.com/apk/res/android" enter code herexmlns:tools="http://schemas.android.com/tools" enter code herexmlns:ads="http://schemas.android.com/apk/lib/com.google.ads" enter code hereandroid:id="@+id/linearLayout" enter code hereandroid:layout_width="fill_parent" enter code hereandroid:layout_height="fill_parent" enter code here`android:orientation="vertical" >

`enter code here`<Button
    `enter code here`android:id="@+id/button1"
    `enter code here`android:layout_width="match_parent"
    `enter code here`android:layout_height="wrap_content"
    `enter code here`android:onClick="beginYourTask"
    `enter code here`android:text="Load Fuck" />

`enter code here`<ProgressBar
    `enter code here`android:id="@+id/myProgress"
    `enter code here`android:layout_width="wrap_content"
    `enter code here`android:layout_height="wrap_content"
    `enter code here`android:layout_gravity="center"
    `enter code here`android:visibility="invisible" />

`enter code here`<TextView
    `enter code here`android:id="@+id/temp"
    `enter code here`android:layout_width="wrap_content"
    `enter code here`android:layout_height="wrap_content"
    `enter code here`android:layout_gravity="center_horizontal"
    `enter code here`android:text="Attempting to give a Fuck"
    `enter code here`android:visibility="invisible" />

`enter code here`<com.google.android.gms.ads.AdView

    `enter code here`android:id="@+id/adView"
    `enter code here`android:layout_width="match_parent"
    `enter code here`android:layout_height="wrap_content"
    `enter code here`android:layout_alignParentBottom="true"
    `enter code here`android:layout_alignParentLeft="true"
    `enter code here`ads:adSize="BANNER"
    `enter code here`ads:adUnitId="ca-app-pub-5799130826595319/9495233582"/>
`enter code here`</com.google.android.gms.ads.AdView>

enter code here