When maintaining macports packages, I prefer to remove old packages when I replace them with new ones. However, over time as packages are upgraded, you end up with problems like: $ sudo port uninstall -f postgresql83 ---> The following versions of postgresql83 are currently installed: ---> postgresql83 @8.3.3_0 ---> postgresql83 @8.3.7_0 ---> postgresql83 @8.3.8_1 (active) Error: port uninstall fa