title: How to install the Android ADT Plugin in Eclipse?
body: <p>I followed the instructions on <a href="http://developer.android.com/sdk/eclipse-adt.html" rel="noreferrer">ADT Plugin for Eclipse</a> but I got this message when installing in Eclipse:</p>
  
  <pre><code>Cannot complete the install because one or more required items could not be found
    Software being installed: Android Development Tools 0.9.9.v201009221407-60953 
        (com.android.ide.eclipse.adt.feature.group 0.9.9.v201009221407-60953)
    Missing requirement: Android Development Tools 0.9.9.v201009221407-60953
        (com.android.ide.eclipse.adt.feature.group 0.9.9.v201009221407-60953)
        requires 'org.eclipse.gef 0.0.0' but it could not be found
  </code></pre>
  
  <p>I have tried with both 64bit and 32bit Eclipse Galileo fresh installs. I am using Windows 7.</p>
  
  <p><strong>Update:</strong> I followed the steps on <a href="http://tewson.com/content/orgeclipsegef-000-required-installing-android-development-tools-eclipse-351" rel="noreferrer">org.eclipse.gef 0.0.0 required for installing Android Development Tools on Eclipse 3.5.1</a> and installed GEF SDK 3.5.2 but now I got a new similar error message when installing ADT:</p>
  
  <pre><code>Cannot complete the install because one or more required items could not be found
    Software being installed: Android Development Tools 0.9.9.v201009221407-60953 
        (com.android.ide.eclipse.adt.feature.group 0.9.9.v201009221407-60953)
    Missing requirement: Android Development Tools 0.9.9.v201009221407-60953
        (com.android.ide.eclipse.adt.feature.group 0.9.9.v201009221407-60953)
        requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found
  </code></pre>
  
  <p>How can I install the Android ADT Plugin for Eclipse 3.5.2 on Windows?</p>