title: Can't install maven plugin for eclipse on Ubuntu 12.04
body: <p>I tried install at eclipse Indigo - Version: 3.7.2, Maven plugin.</p>
  
  <p>Here step by step what I did:</p>
  
  <p>Help => Install new software... => Work with => add <code>http://download.eclipse.org/technology/m2e/releases</code> location => Tick <code>Maven integration for eclipse</code> => next.</p>
  
  <p>But it wasn't finished and pop up:</p>
  
  <pre><code>Cannot complete the install because one or more required items could not be found.
    Software being installed: m2e - Maven Integration for Eclipse 1.4.0.20130601-0317 (org.eclipse.m2e.feature.feature.group 1.4.0.20130601-0317)
  </code></pre>
  
  <p>But when I looking for at Window => Preferences, Maven doesn't exist.</p>
  
  <p>I want to update eclipse to <code>kepler</code> version. I added needs repository to</p>
  
  <pre><code>Window - Preferences - Install/Update - Available Softsarve..
  </code></pre>
  
  <p>And when I went to <code>Help - Check for Updates</code> I saw next error:</p>
  
  <pre><code>Cannot complete the install because of a conflicting dependency.
    Software being installed: Equinox p2 RCP Management Facilities Source 1.2.0.v20130604-2046 (org.eclipse.equinox.p2.rcp.feature.source.feature.group 1.2.0.v20130604-2046)
    Software currently installed: Eclipse Platform 3.7.0.I20110613-1736 (org.eclipse.platform.ide 3.7.0.I20110613-1736)
    Only one of the following can be installed at once: 
      Simple Configurator Manipulator 2.0.0.v20130327-2119 (org.eclipse.equinox.simpleconfigurator.manipulator 2.0.0.v20130327-2119)
      Simple Configurator Manipulator 2.0.0.dist (org.eclipse.equinox.simpleconfigurator.manipulator 2.0.0.dist)
    Cannot satisfy dependency:
      From: Equinox p2 Core Function 1.0.1.dist-8291FXcFLhV8CJ871602A41 (org.eclipse.equinox.p2.core.feature.feature.group 1.0.1.dist-8291FXcFLhV8CJ871602A41)
      To: org.eclipse.equinox.simpleconfigurator.manipulator [2.0.0.dist]
    Cannot satisfy dependency:
      From: Equinox p2 Core Function 1.2.0.v20130604-2046 (org.eclipse.equinox.p2.core.feature.feature.group 1.2.0.v20130604-2046)
      To: org.eclipse.equinox.simpleconfigurator.manipulator [2.0.0.v20130327-2119]
    Cannot satisfy dependency:
      From: Equinox p2 RCP Management Facilities 1.2.0.v20130604-2046 (org.eclipse.equinox.p2.rcp.feature.feature.group 1.2.0.v20130604-2046)
      To: org.eclipse.equinox.p2.core.feature.feature.group [1.2.0.v20130604-2046]
    Cannot satisfy dependency:
      From: Equinox p2 RCP Management Facilities Source 1.2.0.v20130604-2046 (org.eclipse.equinox.p2.rcp.feature.source.feature.group 1.2.0.v20130604-2046)
      To: org.eclipse.equinox.p2.rcp.feature.feature.group [1.2.0.v20130604-2046]
    Cannot satisfy dependency:
      From: Equinox p2 Provisioning for IDEs. 2.1.2.dist-6-Bk8lt6MLqLsEf6-RFpFIpRdhQG (org.eclipse.equinox.p2.user.ui.feature.group 2.1.2.dist-6-Bk8lt6MLqLsEf6-RFpFIpRdhQG)
      To: org.eclipse.equinox.p2.core.feature.feature.group [1.0.1.dist-8291FXcFLhV8CJ871602A41]
    Cannot satisfy dependency:
      From: Eclipse Platform 3.7.0.I20110613-1736 (org.eclipse.platform.ide 3.7.0.I20110613-1736)
      To: org.eclipse.equinox.p2.user.ui.feature.group [2.1.2.dist-6-Bk8lt6MLqLsEf6-RFpFIpRdhQG]
  </code></pre>
  
  <p><em><strong>How to solve this and install Maven plugin?</em></strong></p>