title: problems while implementing android GCM demo
body: <p>I put in reference this:
  <a href="http://developer.android.com/guide/google/gcm/demo.html" rel="nofollow">http://developer.android.com/guide/google/gcm/demo.html</a></p>
  
  <p>in Using App Engine for Java number 4
  I am supposed to run this on a cmd inside the samples/gcm-demo-appengine directory :ant -Dsdk.dir=/opt/google/appengine-java-sdk runserver -Dserver.host=192.168.1.10</p>
  
  <p>I replace the "192.168.1.10" with "127.0.0.1" which is my locolhost.</p>
  
  <p>after executing this command I got:</p>
  
  <p>BUILD FAILED</p>
  
  <pre><code>C:\Program Files (x86)\Android\android-sdk\extras\google\gcm\samples\gcm-demo-ap
  pengine\build.xml:27: Cannot find C:\opt\google\appengine-java-sdk\config\user\a
  nt-macros.xml imported from C:\Program Files (x86)\Android\android-sdk\extras\go
  ogle\gcm\samples\gcm-demo-appengine\build.xml
  </code></pre>
  
  <p>can you tell me what the problem?</p>