Hi Vignesh,
This SAML metadata validation is a [known](https://github.com/GluuFederation/oxTrust/issues/1928) error and the fix has been applied in 4.1.1 which is into final stages of QA. But this validation error shouldn't prevent you from SAML login.
You can use the attached metadata and test login with Splunk. Let me know in case of any issues.