Currently working through an assignment on the Udacity Nano-degree related to A/B testing (thank you for the great course content @PatrickN )
Unfortunately - when using the AB testing tools for the first time, I encountered several cryptic error messages.
This request is not to help diagnose this error message, but rather to wrap these error messages in a way that gives users some useful info so that they can solve this problem themselves.
As you can see from the error message below - the error provided does not give the user any hints on how to go about fixing the problem.
I've attached the workflow with embedded data so this should be replicatable