Ummm.... ok so it's coming up with "Error parsing XML: not well-formed (invalid token)" when I try to run in this XML layout file.... Please help ASAP!!! :(

Here's the code!
Java Code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/main_title" />
<Button
    android:layout_width="fill_parent"
    android:layout_height="wrap content"
    android:text="@string/continue_label" />
<Button
    android:layout_width="fill_parent"
    android:layout_heigth="wrap_content"
    android:text="@string/new_game_label" />
<Button
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/about_label" />
<Button
     android:layout_width="fill_parent"
     android:layout_width="wrap content"
     android:text="@string/exit_label" />
</LinearLayout>