I erased a project from the Project Explorer, because I didn't think I had everything in the Workspace folder that it needed. I was getting error messages. When I got the complete project into the workspace folder and tried to re-import it I get this message: "Some projects cannot be imported because they already exist in the workspace."
The three folders of the project show up in the window, but are greyed out and cannot be selected.
Thanks to Arun and Francis below.... but new problem
OK. Great! Got passed that one deleting from hard disk and creating a new workspace folder. But now when I try to run it as an Android Application I get the message, "No compatible targets were found. Do you wish to add new Android Virtual device? And in the Console: "Failed to find an AVD compatible with target 'Google APIs'." I'm really new to this so thanks for whatever patience you have to answer newbie questions.