1. Project Structure > under Modules just hit the plus button and selectImport Existing Project and import ​​actionbarsherlock​​.

 

2.若已经导入了文件则在Project结构内修改导入的包的build.gradle文件

android {
compileSdkVersion 14
buildToolsVersion '17.0.0'

to this

android {
compileSdkVersion 21
buildToolsVersion '19.1.0'



3.project structure-->add dependencies


p.s actionbarsherlock 同appcombat v7貌似有冲突