Create Report and Dashboard Folders - prompt asking to share roles that don't exist

Here's the section I'm working on.  

Create a new dashboard folder called Global Sales Dashboards:

1. Click the Dashboards tab.
2. Click New Folder and enter the details.
3. For Folder Label, enter Global Sales DashboardsCopy.
4. Click in the Folder Unique Name text box to auto-populate the unique name. Don't worry, the unique name of this folder isn't checked.
5. Click Save.

Share all the new folders with the Sales team:

1. Click Created by Me under Folders.
2. Click the arrow to the right of the Global Sales Dashboards folder, and select Share from the menu.
3. From the Share With dropdown, select Role and Internal Subordinates.
4. In the Search Roles... box enter and select Channel Sales TeamCopy, Eastern Sales TeamCopy, and Western Sales TeamCopy.
5. Leave Access as View, and click Share.

When I search for the roles like Channel Sales Team, I don't have them. I don't think it was part of a previous exercise for the Trailhead either.