Unable to update index for central http://repo1.maven.org/maven2/

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文章详细介绍了如何解决MyEclipse启动时出现的无法更新中央索引的问题，通过调整MyEclipse的偏好设置来解决。

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Unable to update index for central http://repo1.maven.org/maven2/ 就是这句，myeclipse启动后控制台输出这句话：
解决办法：
1.在myeclipse3.4（我用的这个版本）里面Window => Preferences => Myeclipse Enterprise Workbench => Maven4Myeclipse => Maven=>禁用Download repository index updates on startup
如果没有，则首先你要 Window => Preferences => Myeclipse Enterprise Workbench => Maven4Myeclipse
这个里面启用 Enable Maven4Myeclipse features ，打上勾，要先启用这个插件
这样 Window => Preferences => Myeclipse Enterprise Workbench => Maven4Myeclipse => Maven
就有了！再选中就好了！
其实上面还有一项 offline 的！呵呵！我直接就把这个选上了！哈哈！

myeclipse启动后控制台显示这句，解决方法是：

Window => Preferences => Myeclipse Enterprise Workbench => Maven4Myeclipse => Maven=>禁用Download repository index updates on startup

September 22, 2011 by Vladimir Stanković

Recently I wanted to refresh my maven repos, but the following problem have occured

Unable to update index for central|http://repo1.maven.org/maven2

If you experience this problem, try to delete contents in the following directory

workspace_location\.metadata\.plugins\org.maven.ide.eclipse\nexus

Before directory deletion ensure that your Eclipse instance is not running.

After you deleted directory go to Window->Preferences->Maven and enable checkbox named“Download repository index updates on startup”.
Press OK and restart Eclipse.

Next time you start Eclipse Nexus indexer will update repository indexes.