Getting this error message when trying to create of update trusted urls "You can't add a prompt or walkthrough to this page because this page location isn't supported yet." I am in the sales console trying to create the prompt.

Getting this error message when trying to create of update trusted urls "You can't add a prompt or walkthrough to this page because this page location isn't supported yet." I am in the sales console trying to create the prompt. Even though the prompt is created I.m getting an error message stating the trusted URL cannot be found. Here is the error message:  We can’t find a trusted URL for Salesforce Help in your org. Complete the Prework before you attempt this challenge.

I tried to change to classic mode but the system wont allow the change.

#Trailhead Challenges