I have been using Xcode 3.0 on Leopard 10.5.4. Recently I upgraded the os to Snow Leopard 10.6.2. And now I want to upgrade Xcode to 3.2.1 too. I read the documentation of Xcode (for 3.0) and it said that I can remove Xcode with the following command: $ sudo /Developer/Library/uninstall-devtools --mode=all Running that command, and I got the following errors: ERROR: Can't locate uninstaller script /Library/Developer/3.0/uninstall-devtools ERROR: Can't locate uninstaller script /Library/Developer/Shared/uninstall-devtools Can't determine system version. Anybody has this problem before? What should I do to remove Xcode 3.0 completely so that I can install the new Xcode 3.2.1? Any help is appreciated! Thanks a lot! wil.