Those who have been using Vaadin since before we launched the vaadin.com-site might be using
dev.itmill.com
for SVN-access. For Google-search reasons we have changed dev.itmill.com from being an alias of dev.vaadin.com into a redirect to dev.vaadin.com. Your browser will understand the forward and all links to dev.itmill.com are transparently redirected (forever).
SVN, however, needs a little attention before it will cooperate.
This should do the trick if you are using command-line SVN:
svn switch --relocate http://dev.itmill.com/svn http://dev.vaadin.com/svn /checkout/directory
And the same can be done in Eclipse by choosing svn repository perspective, rightclick on the repo and choose relocate.
Thank you for your patience 