If you have a platform hidden via settings, and the platform gets later removed from Dashboard configuration, then an exception is raised at load time.
Created attachment 237206 [details] proposed fix
Comment on attachment 237206 [details] proposed fix Whoops!
Comment on attachment 237206 [details] proposed fix Clearing flags on attachment: 237206 Committed r172996: <http://trac.webkit.org/changeset/172996>
All reviewed patches have been landed. Closing bug.