I'm trying to import content from an external app. I have the consumer key and shared secret. I've downloaded the Canvas package from the app. When I import it to Canvas, I get an alert that the content has issues. The issue is that the files need to be configured. From the course page, I see every module and that was imported, but whenever I click on it, I get an error message saying "Couldn't find valid settings for this link." What am I missing? What do I need to do to configure the files?