title: Eclipse WTP installation fails "Cannot complete the install because one or more required items could not be found"
body: <p>I followed the answer's instructions <a href="https://stackoverflow.com/questions/12330835/plugin-installation-fails-because-required-items-are-missing">here</a> but the issue persists. I have Juno and trying to download WTP SDK 3.1.2 (Not sure if that's what I'm supposed to download. Tried other things but none worked) from <a href="http://download.eclipse.org/webtools/updates/" rel="nofollow noreferrer">here</a>, and get the error message</p>
  
  <pre><code>Cannot complete the install because one or more required items could not be found.
    Software being installed: JST Enterprise Plug-in Developer Resources 3.1.1.v200908101600-771184eAHSuuJTW3Ue6ZhBIyV8tu (org.eclipse.jst.enterprise_sdk.feature.feature.group 3.1.1.v200908101600-771184eAHSuuJTW3Ue6ZhBIyV8tu)
    Missing requirement: J2EE Core Component 1.1.301.v200908181930 (org.eclipse.jst.j2ee.core 1.1.301.v200908181930) requires 'bundle com.ibm.icu [3.4.4,4.1.0)' but it could not be found
    Missing requirement: J2EE Core Component 1.1.301.v200911302230 (org.eclipse.jst.j2ee.core 1.1.301.v200911302230) requires 'bundle com.ibm.icu [3.4.4,4.1.0)' but it could not be found
    Cannot satisfy dependency:
      From: WTP EJB UI Plug-in 1.1.301.v200908131325 (org.eclipse.jst.ejb.ui 1.1.301.v200908131325)
      To: bundle org.eclipse.jst.j2ee.core [1.1.0,1.2.0)
    Cannot satisfy dependency:
      From: JST Enterprise Plug-in Developer Resources 3.1.1.v200908101600-771184eAHSuuJTW3Ue6ZhBIyV8tu (org.eclipse.jst.enterprise_sdk.feature.feature.group 3.1.1.v200908101600-771184eAHSuuJTW3Ue6ZhBIyV8tu)
      To: org.eclipse.jst.enterprise_ui.feature.feature.group [3.1.1.v200908101600-7_7EGrjFQRwRb4P511ebObS5XZhq]
    Cannot satisfy dependency:
      From: Eclipse Java EE Developer Tools 3.1.1.v200908101600-7_7EGrjFQRwRb4P511ebObS5XZhq (org.eclipse.jst.enterprise_ui.feature.feature.group 3.1.1.v200908101600-7_7EGrjFQRwRb4P511ebObS5XZhq)
      To: org.eclipse.jst.ejb.ui [1.1.301.v200908131325]
  </code></pre>