使用Android SDK Manager 更新了Anadroid SDK Tooks 之后，
打开eclipse提示 This Android SDK requires Android Developer Toolkit version 23.0.0 or above, 点击Check for Updates
检测一会后提示 No update were found
网上查到的解决办法：
1.打开Eclipse，关闭提示升级对话框，点击Help -> Install New Software...
2."Work with"选择“Android Developer Tools Update Site..."的那一项，勾选呈现的Develop Tools和NDK Plugins
3.最关键的一步：作废下面的“Contact all sites..."，然后next
4.呈现更新项，依次选择并赞成，完成更新
5.更新完毕，重启Eclipse，项目编译经由过程
操作后报 Cannot complete the install because of a conflicting dependency 错误
没办法了选择卸载ADT重新安装
1、eclipse中已安装ADT的卸载方法
打开eclipse后，Help->About Eclipse SDK->Installation Details,把已安装的ADT选中后，点击Uninstall卸载即可（需要卸载多个文件）。
2、ADT组件下载ADT后本地安装（可安装当前eclipse版本适应的ADT,根据自己来决定安装具体ADT版本）
2.1.网上下载ADT-23.0.0.zip文件，保存到eclipse目录下（D:\eclipse）
2.2.启动eclipse后，点击Help > Install New Software，打开install窗口后，点击按钮Add打开Add Site窗口，Name（输入ADT），Location（选择到D:\eclipse\ADT-25.0.0.zip）,点击OK
2.3.选中所有待安装，按照提示安装即可。
强制覆盖
把下载好的ADT解压出来的plugin和feature文件夹拷贝到eclipse安装目录下面
没想到卸载也报错，
uninstalling software has encountered a problem
An error occurred while uninstalling
session context was:(profile=profile, phase=org.eclipse.equinox.internal.p2.engine.phases.Uninstall, operand=[R]org.eclipse.rcp.configuration_root.win32.win32.x86 1.0.0.M20130204-1200 --> null, action=org.eclipse.equinox.internal.p2.touchpoint.natives.actions.CleanupzipAction).
Backup of file D:\Program Files\adt-bundle-windows-x86-20131030\eclipse\eclipse.exe failed.
Can not remove : D:\Program Files\adt-bundle-windows-x86-20131030\eclipse\eclipse.exe
本地安装照样报错，
Cannot complete the install because of a conflicting dependency.
Software being installed: Android Development Tools 23.0.0.1245622 (com.android.ide.eclipse.adt.feature.feature.group 23.0.0.1245622)
Software currently installed: Android Developer Tools 22.3.0.v201310242005-887826 (com.android.ide.eclipse.adt.package.product 22.3.0.v201310242005-887826)
Only one of the following can be installed at once:
ADT XML Overlay 23.0.0.1245622 (overlay.com.android.ide.eclipse.adt.overlay 23.0.0.1245622)
ADT XML Overlay 22.3.0.v201310242005-887826 (overlay.com.android.ide.eclipse.adt.overlay 22.3.0.v201310242005-887826)
Cannot satisfy dependency:
From: Android Development Tools 23.0.0.1245622 (com.android.ide.eclipse.adt.feature.feature.group 23.0.0.1245622)
To: overlay.com.android.ide.eclipse.adt.overlay [23.0.0.1245622]
Cannot satisfy dependency:
From: Android Development Tools 22.3.0.v201310242005-887826 (com.android.ide.eclipse.adt.feature.group 22.3.0.v201310242005-887826)
To: overlay.com.android.ide.eclipse.adt.overlay [22.3.0.v201310242005-887826]
Cannot satisfy dependency:
From: ADT Package 22.3.0.v201310242005-887826 (com.android.ide.eclipse.adt.package.feature.group 22.3.0.v201310242005-887826)
To: com.android.ide.eclipse.adt.feature.group 22.2.0
Cannot satisfy dependency:
From: Android Developer Tools 22.3.0.v201310242005-887826 (com.android.ide.eclipse.adt.package.product 22.3.0.v201310242005-887826)
To: com.android.ide.eclipse.adt.package.feature.group [22.3.0.v201310242005-887826]
强制覆盖后TMD还提示 This Android SDK requires Android Developer Toolkit version 23.0.0 or above，老子不跟你玩了，直接去Android官网上下一个新的Eclipse开发环境
没想到更新了ADT带来这么多问题，以后没有必要坚决不更新了。