We also faced the same issue then, The below reference helped us
http://stackoverflow.com/questions/14856708/attempting-to-deploy-a-binary-to-a-location-where-a-different-binary-is-already/14856967#14856967https://stackoverflow.com/questions/14856708/attempting-to-deploy-a-binary-to-a-location-where-a-different-binary-is-already/14856967#14856967
along with that to find which component having same or duplicate name, with My DBA help I executed the below query.
SELECT * FROM BINARYVARIANTS where [path] like '%%'