Greetings and thanks for your attention and help. I have the next trouble:
I have various projects that runs ok made with Eclipse Juno with ADT, some of these projects was made using the google maps api for android; this implies that y import the google-play-services-lib project into the structure, and generate an apikey for the mainfest, etc etc…
Recently, I restore my machine for mantinance, and backup these projects. Download and try the new android studio, i create a little test and try to import my proyects, but do not work. I have some errors and warnings about libraries and codifications. Someone can help me?