Ok, I founded the solution:
1) As written
here,
the directory “/private/var/mobile/Media/PublicStaging” may hold a copy of the application. So delete the application folder inside “/private/var/mobile/Media/PublicStaging” (if there is);
2) As written
here,
go to the "Build" menu and select "Clean All Targets" (Build > Clean All Targets);
AND GOODBYE ERROR!!!
