找不到Android API 26的源码？

Targeting API 26, what do to about those missing sources?

找到了JakeWharton大神给的操作方法，如下：

cd SDK/sources
cp -R android-25 android-26
cd android-26
vi/emacs/nano package.xml
# Find/replace 25 with 26
vi/emacs/nano source.properties
# Find/replace 25 with 26

Reboot AS and enjoy.