Links

Enabling My Domain

WARNING: All of the Surface Lightning components require that the organization the application is installed in have the My Domain name specified and activated.
TIP: Want to take a practice run before doing this in your own org? Here's the Salesforce Trailhead on how to enable My Domain.
Follow the steps from Salesforce on how to enable My Domain.
NOTE: My Domain will be enabled in all orgs in Winter 22.