我用新的SDK工具更新了Eclipse (rev. 23)，但现在当Eclipse启动时，我收到了错误:

此Android SDK要求Android Developer Toolkit版本23.0.0或以上。当前版本为22.6.3.v201404151837-1123206。请更新ADT到最新版本

“检查更新”没有发现更新。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)
    To: com.android.ide.eclipse.adt.package [22.6.3.v201404151837-1123206]
Cannot satisfy dependency:
    From: ADT Package 22.2.1.v201309180102-833290 (com.android.ide.eclipse.adt.package.feature.group 22.2.1.v201309180102-833290)
    To: com.android.ide.eclipse.adt.feature.group 22.2.0
Cannot satisfy dependency:
    From: Android Developer Tools 22.2.1.v201309180102-833290 (com.android.ide.eclipse.adt.package.product 22.2.1.v201309180102-833290)
    To: com.android.ide.eclipse.adt.package.feature.group [22.2.1.v201309180102-833290]

从网站下载上一份ADT后，似乎又出现了一个问题。

没有安装SDK Tools rev. 23 proguard，文件夹SDK dir/ Tools /proguard丢失，其他工具也丢失。这个版本包含几个错误。