p>昨天我遇到同样的问题，我尝试以下方式

I faced the same issue yesterday and I tried with the following way

而不是使用 http：// make https：//

instead of updating using the url with http:// make https://

Android Developer Tools Update Site - http://dl-ssl.google.com/android/eclipse/

with

Android Developer Tools Update Site - https://dl-ssl.google.com/android/eclipse/

编辑：

• 打开eclipse，然后转到帮助 - >安装新软件...

选择下拉工作，然后选择以前安装的ADT网址

Choose the Work with Drop Down and select the ADT url previously you installed

更改 URL http：// with https：//

您需要选择工作与：已安装网址并更改为 https：//

you need to choose Work with: with Already installed URL and change to https://

编辑II ：，您需要在安装过程中取消选中更新站点以查找所需的软件。

EDIT II: you need to unchecked the update sites during install to find required software