Step 6: For the Error Condition Formula, you want to prevent the record from being saved for an Exhaust Port Inspector with a utilization of less than 150%. Enter the formula as AND(Name = "Exhaust Port Inspector", Utilization__c < 1.5).

I created the formula but receive the following error:
Step Not yet complete... here's what's wrong:
The validation rule does not appear to have the correct error formula. Make sure Exhaust Port Inspectors have > 150% utilization'
Note: you may run into errors if you've skipped previous steps.

So I changed the formual to the following: AND(Name="Exhaust Port Inspector", Utilization__c>1.5), but still receive the same error message.
 

I installed both the Opp Alert Coponent and the ContactsToday Component from the Trailhead Module "Working with Custom Lightning Components". However, they are not available to add as components in the Lightning App Builder. I've tried uninstalling an reinstalling, with no luck. The "Custom Components" section in Lightning App Builder shows 0.

Any help would be appreciated - I've had nothing but technical difficulties with this module and I want to earn that darn badge already!