Hello,
I am working through the "Admin Beginner > Lightning Experience Customization > Set Up Your Org" trail. I followed all the inscructions, but the validation seems to be failing. The error I am getting is : "Could not find the 'Audit_Notes__c' field on the custom object named 'Energy_Audit__c'."
As you can see from the image below, my object does have that custom field. 

Any help would be great,
Joe