Check out the note under XSD Catalog here:
Can you suggest the right place to put this info? Almost everyone bumps into this issue initially and I imagine it's annoying for new users. The current solution is sort of buried in our docs, so if there's a better place to put it (like the Install guide), please let us know.
You need to uncheck "Honour all schema locations" under XML->XML Files->Validation in preferences.
You may still get some errors on the source switchyard.xml files (those in src/main/resources/META-INF) because the config mojo will fill in the missing details.
Hope that helps,
To answer the question in the subject of this thread "Can the quickstarts be (easily) imported and run in eclispe?" - the answer is absolutely, yes. All you have to do is File->Import->Existing Maven Projects and then navigate to the quickstart that you want to import. Super easy and the error you mention above is just a cosmetic thing (solution found above).