Hi All I am working through the trailhead and cannot seem to get a particular exercise to validate
Admin Trail - Beginner -> Data Modeling -> Creating Object Relationships 
I have completed the exercise (and rechecked a few times) and when I click on "Check Challenge" I get the following message:
Challenge not yet complete... here's what's wrong: 
All the expected custom fields for the Campsite_Reservation__c object could not be found.

Below is a screenshot of my setup in the enviroment