Gradle error “Attribute ”xxx“ has already been defined” in Android Studio

Question

I created a project in Android Studio and added a few dependencies using Maven Central and when I try to compile, I run into this type of errors:

Error:Gradl         


        

Answer 1

The last version of Google Play Services now uses appcompat-v7, so u can't use it with actionbarsherlock. You have to use only appcompat-v7 or the previous version of play services:

compile 'com.google.android.gms:play-services:7.0.0'

Answer 2

You should remove this line in your dependencies :

compile 'com.android.support:appcompat-v7:18.0.0'