Eclipse安装maven插件m2e

m2e - http://m2eclipse.sonatype.org/sites/m2e 

m2e-extras - http://m2eclipse.sonatype.org/sites/m2e-extras

，报错信息如下： 

Cannot complete the install because one or more required items could not be found.
  Software being installed: Maven Integration for Eclipse (Required) 0.12.1.20110112-1712 (org.maven.ide.eclipse.feature.feature.group 0.12.1.20110112-1712)
  Missing requirement: Maven Integration for Eclipse (Editors) 0.12.1.20110112-1712 (org.maven.ide.eclipse.editor 0.12.1.20110112-1712) requires 'bundle org.eclipse.zest.core 0.0.0' but it could not be found
  Cannot satisfy dependency:
    From: Maven Integration for Eclipse (Required) 0.12.1.20110112-1712 (org.maven.ide.eclipse.feature.feature.group 0.12.1.20110112-1712)
    To: org.maven.ide.eclipse.editor [0.12.1.20110112-1712]

解决方案： 

Help -> Install new Software ->Available Software Sites -> choose "http://download.eclipse.org/tools/gef/updates/releases/" -> Enable it -> then install. 

Or if don't have, choose Add "http://download.eclipse.org/tools/gef/updates/releases/" -> then install. 

After finish installing, restart eclipse, can install maven plugin. 

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An error occurred while collecting items to be installed
session context was:(profile=epp.package.jee, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Unable to read repository at http://m2eclipse.sonatype.org/sites/m2e/0.12.1.20110112-1712/plugins/org.maven.ide.eclipse.maven_embedder_0.12.1.20110112-1712.jar.
Read timed out

解决方案： 

change another address: 

http://download.eclipse.org/technology/m2e/releases

 

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