Android ADT更新错误

如何修复此错误

Cannot complete the install because of a conflicting dependency.
  Software being installed: Android Development Tools 23.0.7.2120684 (com.android.ide.eclipse.adt.feature.feature.group 23.0.7.2120684)
  Software currently installed: Android Development Tools 21.0.1.v201212060256-543035 (com.android.ide.eclipse.adt.feature.group 21.0.1.v201212060256-543035)
  Only one of the following can be installed at once: 
    ADT XML Overlay 23.0.7.2120684 (overlay.com.android.ide.eclipse.adt.overlay 23.0.7.2120684)
    ADT XML Overlay 21.0.1.v201212060256-543035 (overlay.com.android.ide.eclipse.adt.overlay 21.0.1.v201212060256-543035)
  Cannot satisfy dependency:
    From: Android Development Tools 23.0.7.2120684 (com.android.ide.eclipse.adt.feature.feature.group 23.0.7.2120684)
    To: overlay.com.android.ide.eclipse.adt.overlay [23.0.7.2120684]
  Cannot satisfy dependency:
    From: Android Development Tools 21.0.1.v201212060256-543035 (com.android.ide.eclipse.adt.feature.group 21.0.1.v201212060256-543035)
    To: overlay.com.android.ide.eclipse.adt.overlay [21.0.1.v201212060256-543035]

Eclipse-->帮助-->关于Eclipse-->安装详细信息

选择-Android DDMS、ADT、Android层次结构查看器、Android本机开发工具、Android TraceView和Tracer for OpenGL ES软件包

卸载上面选择的所有插件

重新启动Eclipse

从更新站点安装ADT-

Eclipse-->帮助-->关于Eclipse-->安装详细信息

选择-Android DDMS、ADT、Android层次结构查看器、Android本机开发工具、Android TraceView和Tracer for OpenGL ES软件包

卸载上面选择的所有插件

重新启动Eclipse

从更新站点安装ADT-