title: Problem while installing ADT on eclipse galileo (ubuntu)
body: <p>I have eclipse Galileo installed my ubuntu machine. It was working fine with Android 2.2 ADT.
  But in between something happened and I was not able to run any program. So I uninstalled Eclipse and reinstalled. Now When I try to installed ADT, it is giving errors.<br>
  Help -> Install new  packages ->
  Work With (add)
  Name :ADT.<br>
  Location:http://dl-ssl.google.com/android/eclipse/<br>
  It is listing ->Developing tool.
  I selected it and pressed 'Next'
  It is giving following error.</p>
  
  <pre><code>The operation cannot be completed.  See the details.
  Cannot complete the install because one or more required items could not be found.
    Software being installed: Android Development Tools 11.0.0.v201105251008-128486 (com.android.ide.eclipse.adt.feature.group 11.0.0.v201105251008-128486)
    Missing requirement: Android Development Tools 11.0.0.v201105251008-128486 (com.android.ide.eclipse.adt.feature.group 11.0.0.v201105251008-128486) requires 'org.eclipse.wst.xml.core 0.0.0' but it could not be found.
  </code></pre>
  
  <p>Please help me to install ADT on eclipse.</p>