Lightning Experience Reports & Dashboards:

In Visualize Your Data with the Lightning Dashboard Builder Challenge, I get this error:

Challenge Not yet complete... here's what's wrong:
The 'Opportunity Stages' report does not include the 'Opportunity Name' field.

However, I did add Opportunity Name field in the report, except, I wasn't sure what to select in the "equals" filed and the field next to it.

Please help.