After the author builds the Android environment, carries on the Android SDK update download to upgrade, the turtle's speed, more makes the person angry is to 85% progress, the direct timeout, the circulation 3 times does not have the fruit. Check the relevant information, the original is Google's server encountered the interference of the celestial, the network is broken, so the upgrade of Android will always have a lot of problems. Here's an illustration of the problem above select Android SDK Manager
Select Tools--->options Fill in the proxy mirrors.neusoft.edu.cn (of course, there are a lot of proxy server, you can easily find) port fill 80 Remember to check the "forcehttps:// ... Sources to be fetched using http://... "option then close after all the peace, download the speed of the leverage, you can download any new version. from now on, my mother will never worry about my study again.
Android SDK Update failed solution (original)
