You can regenerate an Xcode docset by running "sh appledoc.sh" from a shell. The appledoc tool must be installed on your system somewhere, including its templates. You can get it from GitHub at <https://github.com/tomaz/appledoc/>. The appledoc.sh script expects appledoc to be installed in its default location, /usr/local/bin/appledoc. May the force be with you.