我有下载ADT 21.1，并试图在Eclipse上安装

I have download ADT 21.1, and tried install it on eclipse

我的：

该操作不能完成。查看详细信息。

The operation cannot be completed. See the details.

详细信息：

无法完成请求。请参阅错误日志的详细信息。

Cannot complete the request. See the error log for details.

示踪的OpenGL ES会被忽略，因为它已经安装和更新是不允许的。

Tracer for OpenGL ES will be ignored because it is already installed, and updates are not permitted.

Android的DDMS将被忽略，因为它已经安装和更新是不允许的。

Android DDMS will be ignored because it is already installed, and updates are not permitted.

Android开发工具将被忽略，因为它已经安装和更新是不允许的。

Android Development Tools will be ignored because it is already installed, and updates are not permitted.

Android的Traceview将被忽略，因为它已经安装和更新是不允许的。

Android Traceview will be ignored because it is already installed, and updates are not permitted.

Android的层次浏览器将被忽略，因为它已经安装和更新是不允许的。

Android Hierarchy Viewer will be ignored because it is already installed, and updates are not permitted.

当我重新打开SDK管理器，我仍然有这样的：

When I reopen SDK Manager, I still got this:

在窗口 - > preference-> Android的，我得到这个：

In Windows->Preference->Android, I got this:

因此​​，我想reintall ADT，但我发现我不能卸载任何插入式，卸载...按钮是灰色的！

Thus, I wanna reintall ADT, but I found I can't uninstall any Plug In, Uninstall.. button is gray!

推荐答案

在Eclipse中，尝试：

In Eclipse, try:

帮助>安装新软件

然后选择你给的 https://dl-ssl.google.com/android/eclipse/ （工作链接）

Then Choose the name you gave for https://dl-ssl.google.com/android/eclipse/ (working link)

选择要安装的更新，然后重要的是，取消选中联系所有更新站点安装过程中找到所需的软件。

Select the updates to install and then crucially, uncheck "Contact all update sites during install to find required software".