I'm working on step 8 of the Lightning Superbadge. I keep getting the following error:

Challenge Not yet complete... here's what's wrong: 
Please check that all of the relationships are maintained for Opportunity Contacts and Adventure Packages that you upload from the spreadsheet.

I've checked my work against this post (https://developer.salesforce.com/forums/ForumsMain?id=906F0000000fyIbIAI) and still can't find a solution. Any help would be appreciated. 

I even created a new org, installed the LEX package, and followed the above post step-by-step. Same error. 

Here are screenshots of my fiends & relationships for the objects in question. 




 

I'm working on step 8 of the Lightning Superbadge. I keep getting the following error:

Challenge Not yet complete... here's what's wrong: 
Please check that all of the relationships are maintained for Opportunity Contacts and Adventure Packages that you upload from the spreadsheet.

I've checked my work against this post  and still can't find a solution. Any help would be appreciated. 

I'm working on step 4. This is what I have:



And I'm receiving this error:



Any help would be appreciated.