amyb88415256,
I've seen that happen in two scenarios:
1. You haven't yet fully selected a conversion metric.
2. You have partly selected the option to use Analytics for reporting but have yet to specify a report suite.
If it's neither of those please reply with a full-screen screen-shot as it might give me a better idea of why it's complaining about that. Hope this helps!
Mihnea Docea | Technical Support Rep, Customer Care | Customer & Employee Experience | Adobe | (:: 1 (800) 497-0335