Error
Salesforce Community Self-registration attempt fails with the following error:
A new user's attempt to register at failed because
the value for the profileID attribute is either null or invalid. Set the
profileID for new users on the ChatterAnswersRegistration Visualforce page for
the site associated with community or on the apex class associated with
the Facebook authprovider.
Possible Cause
CommunitiesSelfRegController.cls doesn't have a valid ProfileId
The error doesn't mention this class at all.
