I internet download some example Android Project.
Import android studio but not working.
To give an example http://developer.android.com/training/implementing-navigation/lateral.html
Android studio file -> Import Project
Project gie this error
Migrate Project to Gradle?
This project does not use the Gradle build system. We recommend that you migrate to using the Gradle build system.
More Information about migrating to Gradle
Don't show this message again.
And this view
I use android studio 0.3.0