How To Fix: Error: Cannot retrieve repository metadata (repomd.xml) for repository: Dropbox. Please verify its path and try again

After installing dropbox from the RPM package availble on the site on a new Fedora 15 install, I was unable to use yum without coming across this error:

$ update Loaded plugins: langpacks, presto, refresh-packagekit http://linux.dropbox.com/fedora/15/repodata/repomd.xml: [Errno 14] HTTP Error 404 – Not Found : http://linux.dropbox.com/fedora/15/repodata/repomd.xml Trying other mirror. http://linux.dropbox.com/fedora/15/repodata/repomd.xml: [Errno 14] HTTP Error […]