I followed exactly what the tutorial described : https://developer.android.com/training/basics/firstapp/building-ui.html
But when I clicked "finish", I realized my "src" is empty and "activity_main.xml" is not existing.
Just wandering what happened? Or Have they changed anything?
The solution is here: src folder empty on creating new Android project
"Help" -> "Install new software" and install (this will update it) from this url: https://dl-ssl.google.com/android/eclipse/ Thanks Deryk