Eclipse add on: Cant resolve any of the Vaadin classes

Just installed Eclipse Kepler, Tomcat and the Vaadin plugin. When I create a new Vaadin 7 project, Eclipse cant resolve any of the Vaadin classes. It’s probably some class path setting, but I am struggling to resolve it. It worked fine on my old computer. Could you please give me some tips on how to resolve it?

Thanks in advance.
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Try manually refreshing/resolving Ivy… Ivy sometimes has issues loading the deps.