title: NoClassDefFoundError when running Facebook official example
body: <blockquote>
    <p>Sorry I am new, stackoverflow does not
    allow me to post image and links...</p>
  </blockquote>
  
  <p>I try to use Official Android SDK (<a href="http://github.com/facebook/facebook-android-sdk/" rel="nofollow noreferrer">http://github.com/facebook/facebook-android-sdk/</a>). I install the SDK and try to run the Example</p>
  
  <p>At first, it fails at "build", it cannot find the Facebook SDK, so I try to follow the steps found in SDK page:</p>
  
  <blockquote>
    <p>Add a dependency on the Facebook
    Android SDK library on your
    application:</p>
    
    <ol>
    <li>from the File menu, select "Properties"</li>
    <li>once the project Properties are displayed, open the Android section,
    which should list the build targets
    and libraries</li>
    <li>in the bottom "Library" section, click "Add..." and select the Facebook
    SDK project</li>
    <li>refer to <a href="http://developer.android.com/guide/developing/eclipse-adt.html#libraryProject" rel="nofollow noreferrer">http://developer.android.com/guide/developing/eclipse-adt.html#libraryProject</a>
    for more details</li>
    </ol>
  </blockquote>
  
  <p>I check the link at #4, it shows a Mac OS X version Eclipse, which has Library section, but on my Vista PC, with Eclipse 3.5.2, it does not have Library section...</p>
  
  <p>-<a href="http://developer.android.com/images/developing/adt-props-isLib.png" rel="nofollow noreferrer">http://developer.android.com/images/developing/adt-props-isLib.png</a></p>
  
  <p>-<a href="http://farm5.static.flickr.com/4138/4852346022_fc8f6bedbe_b.jpg" rel="nofollow noreferrer">http://farm5.static.flickr.com/4138/4852346022_fc8f6bedbe_b.jpg</a></p>
  
  <p>I try to add the Facebook SDK in Java Build Path. Now it can "build" and start, on both Emulator and Device. However, once it started, it crash, the logcat shows:</p>
  
  <p>ERROR/AndroidRuntime(518): java.lang.NoClassDefFoundError: com.facebook.android.Util</p>
  
  <p>-<a href="http://farm5.static.flickr.com/4138/4852346048_f4a3b998a3_b.jpg" rel="nofollow noreferrer">http://farm5.static.flickr.com/4138/4852346048_f4a3b998a3_b.jpg</a>)</p>
  
  <p>I searched around, about "NoClassDefFoundError" program, but seems those solution is solving external JARs files. I have no problem adding other JARs files, and this Facebook SDK is not JAR...</p>
  
  <p>I tried Clean, rebuild, delete everything and config again, but can't solve this problem yet.</p>
  
  <p>Anyone have idea please help, Thanks.</p>