How does the user_saml app work with SimpleSAMLphp IdP and SP?


I’m trying to use the SAML User App with SimpleSAMLphp, defining and IdP and SP (for testing purpose). Could anyone tell me how to configure it on the admin panel?

My configuration does not work (see image above with and error when I press “Download metadata in XML”.

general-uid_mapping: ??? (necesary? which one?)
general-require_provisioned_account: 0
idp-entityId: https://myip/simplesaml/saml2/idp/metadata.php
idp-singleSignOnService.url: https://myip/simplesaml/saml2/idp/SSOService.php