Eclipse这货好像不支持ADT的直接升级,需要在Install New Software...中强制升级。地址为:
https://dl-ssl.google.com/android/eclipse/
如果不行,请尝试http
This Android SDK requires Android Developer Toolkit version 22.6.1 or above. Current version is 22.
原文:http://blog.csdn.net/h3c4lenovo/article/details/21598511