title: maven plugin install in eclipse, Missing requirement: org.eclipse.platform.feature.group 3.6.0
body: <p>My eclipse version is indigo. 
  I install maven plugin from eclipse install/update:</p>
  
  <p>help ---> install new software --->add,
  URL: <a href="http://download.eclipse.org/technology/m2e/releases" rel="nofollow">http://download.eclipse.org/technology/m2e/releases</a>
  “Maven Integration for Eclipse” shown, I selected it,"next",
  then, error happend:</p>
  
  <p><code>Cannot complete the install because one or more required items could not be found.
    Software being installed: m2e - Maven Integration for Eclipse 1.0.100.20110804-1717 (org.eclipse.m2e.feature.feature.group 1.0.100.20110804-1717)
    Missing requirement: m2e - Maven Integration for Eclipse 1.0.100.20110804-1717 (org.eclipse.m2e.feature.feature.group 1.0.100.20110804-1717) requires 'org.eclipse.platform.feature.group 3.6.0' but it could not be found</code></p>
  
  <p>I don't know what's "org.eclipse.platform.feature.group 3.6.0", I tried to search for install it but I can't.</p>
  
  <p>Wish your response. thx.</p>