I\'ve been experimenting with the new android build system and I\'ve run into a small issue. I\'ve compiled my own aar package of ActionBarSherlock which I\'ve called \'act
Currently referencing a local .aar file is not supported (as confirmed by Xavier Ducrochet)
What you can do instead is set up a local Maven repository (much more simple than it sounds) and reference the .aar from there.
I've written a blogpost detailing how to get it working here:
http://www.flexlabs.org/2013/06/using-local-aar-android-library-packages-in-gradle-builds