Hello all, I am going through Trailhead and i got really stuck in one challenge under Admin Beginner, Reports and Dashboards, Extend Your Reporting Strategy with the AppExchange Challenge. There is a high chance i messed up big time so i tried to uninstall the app i was suppose to practise on and it does not even let me do that as there ate various dependencies but i do not get any other option - to delete the dependencies for example. I do not think it's easy to track my steps back in anymore so can you please help unistall the app so i can start from scratch?
Thanks!
Katerina  

We're having trouble with the "Extending Reports using the AppExchange" module in Trailhead

We keep getting the same error when checking the challenge at the end of the module:

Challenge not yet complete... here's what's wrong: 
The 'LEAD Trend by Source' dashboard component does not have the wedges set to 'Lead Source'.

Wedges ARE set to 'Lead Source', did anybody get this error message? do you know what the solution may be? Thank you!