Application crashes after adding a RadioGroup in Mark L. Murphy's "A Fancier Form" tutorial

Question

I'm going through the "A Fancier Form" chapter in Mark Murphy's "Android Tutorials" book (1st edition) and I can't get past step#2: Add a RadioGroup. The application compiles and installs on emulator and phone with no errors but when I try to run it I get the:

Sorry! The application LunchList (process apt.tutorial) has stopped unexpectedly. Please try again.

This is the code from the book (the only code that changes in that section is the RadioGroup part):

<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent"
    android:stretchColumns="1">
  <TableRow>
    <TextView android:text="Name:" />
    <EditText android:id="@+id/name" />
  </TableRow>
  <TableRow>
    <TextView android:text="Address:" />
    <EditText android:id="@+id/addr" />
  </TableRow>
  <TableRow>
    <TextView android:text="Type:" />
    <RadioGroup android:id="@+id/types">
      <RadioButton android:id="@+id/take_out" android:text="Take-Out" />        
      <RadioButton android:id="@+id/sit_down" android:text="Sit-Down" />
      <RadioButton android:id="@+id/delivery" android:text="Delivery" />
    </RadioGroup>
  </TableRow>
  <Button android:id="@+id/save"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="Save" />
</TableLayout>

Help please?

Thanks, ~Mike