Android SDK下载和更新失败的解决方法！
说明： 这是从CSDN转载过来的
?
最近下载更新SDK总是会出现如下错误：
?
?
据说dl-ssl.google.com在大陆被强了，伟大的天朝真是不让人活了，解决方法就是修改C:\Windows\System32\drivers\etc\hosts文件。添加一行：
?
74.125.237.1 dl-ssl.google.com?
?
这里需要注意的是hosts文件是只读的，我们没有权限修改，需要我们将hosts文件复制到桌面或者其他地方，然后修改，代码如下：
?
?
# Copyright (c) 1993-2009 Microsoft Corp.## This is a sample HOSTS file used by Microsoft TCP/IP for Windows.## This file contains the mappings of IP addresses to host names. Each# entry should be kept on an individual line. The IP address should# be placed in the first column followed by the corresponding host name.# The IP address and the host name should be separated by at least one# space.## Additionally, comments (such as these) may be inserted on individual# lines or following the machine name denoted by a '#' symbol.## For example:## 102.54.94.97 rhino.acme.com # source server# 38.25.63.10 x.acme.com # x client host# localhost name resolution is handled within DNS itself.#127.0.0.1 localhost#::1 localhost//亲，就是增加这一句哦74.125.237.1 dl-ssl.google.com?
?
然后保存，复制修改后的hosts文件到C:\Windows\System32\drivers\etc?目录，替换文件就好！！！我们再次下载SDK的时候就会成功啦，如下图：
?
?
嘿嘿，大功告成啦！！！
PS：补充下，在mac或Linux中，hosts文件所在位置为/etc/hosts，可以使用sudo?vim?/etc/hosts来编辑。
?
