Fatal error: Uncaught Error: Class 'SAML2\XML\md\RoleDescriptor' not found in /var/www/html/simplesamlphp/modules/adfs/src/SAML2/XML/fed/SecurityTokenServiceType.php:17
Stack trace:
#0 {main}
  thrown in /var/www/html/simplesamlphp/modules/adfs/src/SAML2/XML/fed/SecurityTokenServiceType.php on line 17