關於android-sdk_r20.0.3-windows無法正常更新的解決方案

轉自：http://my.oschina.net/jerikc/blog/77406

在www.android.com下載最新版的android-sdk_r20.0.3-windows之後，點擊SDK Manager.exe，發現無法顯示Updates/New的內容，因此無法進行更新。

菜單Tools-->options中的Force https://...sources to be fetched using http://...勾選上之後，問題依舊。

最終解決方案：

在C:\WINDOWS\system32\drivers\etc目錄下，找到hosts檔案，在檔案末尾加上

74.125.237.1 dl-ssl.google.com

如下：

# Copyright (c) 1993-1999 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 host127.0.0.1       localhost74.125.237.1 dl-ssl.google.com

問題得到解決（如）。