I saw an earlier thread about this that said the issue was solved. I started a new Experience Builder with the Near Me Widget today and got the same error. Is there some configuration I need to do in the web map?
Encountering this error is a normal part of configuring a Near Me Widget. You need to click the name of your map in the Near Me settings panel and set up your configuration, so Near Me knows what kind of analysis it should do.
I cannot seem to get this to recognize Subtype Group layers.