The Dropbox repository will not not allow me to link to my account. The message says that only a limited number of accounts may be linked while the app is in development mode. The person who created the app must chage the mode of the app from development to production so everyone has access to their dropbox repositories.
We are evaluating the “Dropbox” API for the site, therefore the app is not available to everyone at the moment, sorry for the inconvenience. An announcement will be made when Dropbox repository is functional for everyone,