Salesforce1 Mobile basics unit 5/5 - Creating Object-Specific Publisher Actions

I believe I have follwed the requirements explicitly, three times now.  Validated that the publisher action actually does what it's supposed to but the check from Trailhead returns an error.  
"Challenge not yet complete... here's what's wrong: 
There was an unhandled exception. Error: NoMethodError. Message: undefined method `each' for nil:NilClass"


I have deactivated all Account triggers to insure there's not a conflict.
I have zero data validation rules on the Account object.
I have zero workflow rules on the Account object.
I have checked that all Approvals are deactivated.

Here are all of the components...

Action

Publisher Layout

Page Layout


Functional Results


I'm quite anxious to complete this unit as it's the only one I have left.