新建项目Android Support library not installed问题

错误提示：
This template depends on the Android Support library, which is either not installed, or the
template depends on a more recent version than the one you hava installed.
http://developer.android.com/tools/extras/support-library.html

Required version: 8
Installed version: Not installed

You can install or upgrade it by clicking the Install button below, or alternatively, you can
install it outside of Eclipse with the SDK Manager, the click on "Check Again" to proceed.

Install/Upgrade Check Again

解决方案： 首先点击install进行安装，完毕后将sdk下的android-sdk-windows/下面的android-compatibility文件夹复制到 extras/android/来，文件夹名字改为support，即可解决此问题。