I tried to connect to moodle via the service provider but I get this error from the moodle Login page.
You seem to be Shibboleth authenticated but Moodle didn't receive any user attributes. Please check that your Identity Provider releases the necessary attributes ('cn', 'givenName', 'sn' and 'mail') to the Shibboleth Service Provider Moodle is running on or inform the webmaster of this server.
Does anyone have any idea where the error came from?
Thank you in advance.
n.b. I use moodle, sp ,and idp