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我使用新的SDK工具更新了Eclipse(版本23),但是现在Eclipse启动时我收到错误:

此Android SDK需要Android Developer Toolkit 23.0.0或更高版本.当前版本是22.6.3.v201404151837-1123206.请将ADT更新到最新版本.

"检查更新"未找到任何更新.如果我尝试"安装新软件",我可以看到版本23,但由于以下错误我无法升级:

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 22.2.1.v201309180102-833290 (com.android.ide.eclipse.adt.package.product 22.2.1.v201309180102-833290)
Only one of the following can be installed at once: 
    ADT Package 22.6.3.v201404151837-1123206 (com.android.ide.eclipse.adt.package 22.6.3.v201404151837-1123206)
    ADT Package 23.0.0.1245622 (com.android.ide.eclipse.adt.package 23.0.0.1245622)
Cannot satisfy dependency:
    From: Android Development Tools 23.0.0.1245622 (com.android.ide.eclipse.adt.feature.feature.group 23.0.0.1245622)
    To: com.android.ide.eclipse.adt.package [23.0.0.1245622]
Cannot satisfy dependency:
    From: Android Development Tools 22.6.3.v201404151837-1123206 (com.android.ide.eclipse.adt.feature.group 22.6.3.v201404151837-1123206) …

这似乎是一项微不足道的任务,但我找不到从Eclipse安装中彻底卸载ADT的选项.当然,我可以删除SDK的文件夹,但这只会在下次启动Eclipse时抛出错误.我问的原因是因为我的旧ADT一直在犯一个错误的错误(无法获取网址https://dl-ssl.google.com/android/repository/addons_list.xml,原因:找不到文件)我需要一个完整,新鲜的重新安装.

重要提示: 在Help - > about eclipse sdk - >安装细节下,所有android插件的卸载按钮都显示为灰色