I am tryng out Android Studio instead of Eclipse. I install it and then start a completely new project and follow the wizard. I add no code of my own.
Then, I right-
I was facing the same issue. As it turns out in my build.gradle file there was this :
configurations { all*.exclude group: 'com.android.support' }
Removing that fixed my issue. So guys, if doing all that and still your issue is not fixed, look for any exclude keywords in your gradle file.