It's possible that some of the imported objects don't have the right Site applied. Many objects in Kentico have a Site and if it doesn't match your site that could be one issue.
Otherwise when importing, did you make sure to check the options to pull everything in? there's some checkboxes on what items you want to pull in, and perhaps those weren't clicked or the global files weren't pulled over.
Can you verify that the resources it says are missing are actually there?