I am getting the following error on Step 3

Challenge Not yet complete... here's what's wrong: 
The 'Name' field on the 'Robot_Setup__c' object does not appear to be an auto number data type.



The data type is correct. I've deleted and readded the field and gotten the same error each time.
 

I am getting the following error on Step 3

Challenge Not yet complete... here's what's wrong: 
The 'Name' field on the 'Robot_Setup__c' object does not appear to be an auto number data type.



The data type is correct. I've deleted and readded the field and gotten the same error each time.