3. Browse to the location of the folder named "phoenix" in the RetroArch repository and select it as the root dir. (as of writing, it is /android/phoenix).
4. You should see two projects have been found, "RetroArch" and "android-support-v7-appcompat". Import both of these.
5. Let Eclipse finish building the workspace, or whatever.
6. You should now be able to build it normally like any application.
1. If you’re running into an issue where adding an existing Android project results in “Invalid project description”, please select a workspace location that doesn’t contain the Android projects.
2. If Eclipse still complains about missing appcompat, right-click on RetroArch->Properties->Android->Library->Add “android-support-v7-appcompat”, and then remove the old appcompat reference.