在www.android.com下载最新版的android-sdk_r20.0.3-windows之后,点击SDK Manager.exe,发现无法显示Updates/New的内容,因此无法进行更新。
菜单Tools-->options中的Force https://...sources to be fetched using http://...勾选上之后,问题依旧。
最终解决方案:
在C:\WINDOWS\system32\drivers\etc目录下,找到hosts文件,在文件末尾加上
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 host
127.0.0.1 localhost
74.125.237.1 dl-ssl.google.com
问题得到解决。
在windows7下,使用管理员身份运行记事本,打开hosts文件,修改后就可以直接保存了。