不得不说svn给我们的团队开发带来了N多便利，也带来了不少麻烦；特么是初学者！这个过程中我是急的想挠墙，经历风与雪的洗礼，搜集一些资料总结出现如下：

在安装svn插件时若出现如下问题：

一、报错

Cannot complete the install because one or more required items could not be found.
  Software being installed: Subversion Revision Graph 1.0.7 (org.tigris.subversion.subclipse.graph.feature.feature.group 1.0.7)
  Missing requirement: Subversion Revision Graph 1.0.7 (org.tigris.subversion.subclipse.graph.feature.feature.group 1.0.7)
 requires 'org.eclipse.draw2d 3.2.0' but it could not be found

解决方法：更新GEF,更新地址:http://download.eclipse.org/tools/gef/updates/releases/

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二、报错

1. Cannot complete the install because one or more required items could not be found.  
2.   Software being installed: Subversion Revision Graph 1.1.1 (org.tigris.subversion.subclipse.graph.feature.feature.group 1.1.1)  
3.   Missing requirement: Subversion Revision Graph 1.1.1 (org.tigris.subversion.subclipse.graph 1.1.1) requires 'bundle org.eclipse.draw2d 3.2.0' but it could not be found  
4.   Cannot satisfy dependency:  
5.     From: Subversion Revision Graph 1.1.1 (org.tigris.subversion.subclipse.graph.feature.feature.group 1.1.1)  
6.     To: org.tigris.subversion.subclipse.graph [1.1.1]  

解决方法：

下载地址：  http://subclipse.tigris.org/update_1.10.x  

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三、如果是抛出这样的异常，则

Your original request has been modified.
  "CollabNet Merge Client" will be ignored because a newer version is already installed.  //安装好了
  "Subclipse (Required)" will be ignored because a newer version is already installed.   //安装好了
  "Subversion Client Adapter (Required)" will be ignored because a newer version is already installed.   //安装好了
  "Subversion JavaHL Native Library Adapter (Required)" will be ignored because a newer version is already installed.   //安装好了
  "Subversion Revision Graph" will be ignored because a newer version is already installed.   //安装好了
  "SVNKit Client Adapter (Not required)" will be ignored because a newer version is already installed.   //安装好了
  "SVNKit Library" will be ignored because a newer version is already installed.  //安装好了
Cannot complete the install because one or more required items could not be found.
  Software being installed: Subclipse Integration for Mylyn 3.x (Optional) 3.0.0 (org.tigris.subversion.subclipse.mylyn.feature.group 3.0.0)
  Missing requirement: Subclipse Integration for Mylyn 3.x (Optional) 3.0.0 (org.tigris.subversion.subclipse.mylyn.feature.group 3.0.0) requires 
'org.eclipse.mylyn.tasks.core [3.0.0,4.0.0)' but it could not be found

解决方案：需要安装 Mylyn  地址为：Juno - http://download.eclipse.org/mylyn/releases/latest

如果还是不行的话，那就换掉adt 吧