Connection to https://dl-ssl.google.com refused.
OR
Failed to fectch URl https://dl-ssl.google.com/android/repository/addons_list.xml.
这儿找答案:https://code.google.com/p/android/issues/detail?id=21359
1. 打开host文件。
2. 添加: 74.125.237.1 dl-ssl.google.com