Android : importing of existing android project ia being imported with name MainActivity

whenever I try to import an existing android project it is imported with the name as "Main Activity" Hence due to this I cannot import more than 1 project as the first project that i would have imported was with the name "Main Activity", Due to this to import another project I have to delete the existing project with the name "Main Activity". I have even tried to switch work space but the problem still persists.