I\'ve been working a bit with Android Studio on OSX 10.7.5 and it looks very promising. I\'ve run into a problem when trying to launch an application on my device however.
EDIT: This actually solved my issue so this is the accepted answer. It seems this answer also helps alot of people but it did not work for me.
Here's what I did to finally make it work. No idea which of these steps triggered my working copy as it seemed very random but I will put them in order.
I just had the same problem with Android Studio 0.5.3. I would recommend restarting your computer, if the adb kill-server, adb start-server method doesn't work.