I think we have all seen a message like this. Usually for me it happens when I am deleting fields that might be on the SKUID page especially if I am in active development of the SKUID pages and the Objects at the same time.
Since SKUID knows exactly which model field is missing it would be awesome if there was a link that we could click on (as part of the message) that when clicked would remove the field and reload the page. This would be a bit quicker than going to the model and removing the field manually.